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1. (Original post by Ayaz789)
Expand the whole bracket! x^2+11x+24
Where did you get 11x from?

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2. (Original post by z_o_e)
Where did you get 11x from?

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By doing 8*x and 3*x across both brackets
3. (Original post by Ayaz789)
Expand the whole bracket! x^2+11x+24
Ohhhh I get it nwo

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4. (Original post by z_o_e)
Ohhhh I get it nwo

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yes
5. (Original post by Ayaz789)
yes
Doneeee

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6. Yepp
7. (Original post by Ayaz789)
Yepp
Yayooo thank you

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8. (Original post by z_o_e)
Yayooo thank you

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Np , not gonna help till 29th of June now yeahh , haha got exams coming up
9. I've never seen it done this way before!

I just find two numbers that add to make b and multiply to make c, which I guess is just a shortcut version of this really...
10. If this a calculator paper question you can fully solve quadratics on a good scientific calculator (saved my ass for C2)
11. (Original post by RueXO)
If this a calculator paper question you can fully solve quadratics on a good scientific calculator (saved my ass for C2)
Im sure thats gcse stuff?
12. (Original post by Asuna Yuuki)
I've never seen it done this way before!

I just find two numbers that add to make b and multiply to make c, which I guess is just a shortcut version of this really...
Yeah same , literally just work the factors in my head haha
13. (Original post by z_o_e)
Just needed help on these questions and if someone can check if i did them correctly thank you so much ♡ image is below X
Nice! I don't know this method to factorise quadratic terms. You made it very good. However, one step in your second equation isn't right.

x^2 - x - 12 = 0 <=> x^2 -4x -3x - 12 = 0

You have choosen the wrong sign: -4x -3x = -7x, that is not equal to -x.

It has to be: -4 + 3x = -x
14. (Original post by Kallisto)
Nice! I don't know this method to factorise quadratic terms. You made it very good. However, one step in your second equation isn't right.

x^2 - x - 12 = 0 <=> x^2 -4x -3x - 12 = 0

You have choosen the wrong sign: -4x -3x = -7x, that is not equal to -x.

It has to be: -4 + 3x = -x
Thank you so much ♡

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15. (Original post by Ayaz789)
Yeah same , literally just work the factors in my head haha
For Gcses we show the full working out. So if the answer isn't correct at least we get a few marks for the working out!

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16. (Original post by z_o_e)
Fore Gcses we show the full working out. So if the answer isn't correct at least we get a few marks for the working out!

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Haha but i know my answer is correct , but for you yeah sure you can show the full working out
17. (Original post by Ayaz789)
Haha but i know my answer is correct , but for you yeah sure you can show the full working out
Okay

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18. (Original post by z_o_e)
Thank you so much ♡

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No, I have to thank you, really!

I have never seen such steps to solve factorising issues before. You have shown me a good alternative to factorise terms. It facilitates this calculation so much. A great thank you to you.
19. (Original post by Kallisto)
No, I have to thank you, really!

I have never seen such steps to solve factorising issues before. You have shown me a good alternative to factorise terms. It facilitates this calculation so much. A great thank you to you.
Awh this just made my day X

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20. (Original post by Asuna Yuuki)
I've never seen it done this way before!

I just find two numbers that add to make b and multiply to make c, which I guess is just a shortcut version of this really...
(Original post by Ayaz789)
Yeah same , literally just work the factors in my head haha
Exactly, I think the problem OP has is confidence or something, because I've never seen someone do that much working out. And I agree, you can do most things very quickly in your head.

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Updated: June 13, 2016
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