completing the square

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#1
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1 month ago
#2
Sure no problemo
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1 month ago
#3
I hope you can see the image I have sent.
Step 1) Whenever there is a number infront of an ‘x’ you can half it and put it in the brackets of (x ...)^2 Where the “...” is the halved number.

Step2) using this halved number e.g 3 (from the image, we always subtract the square of it. So in this case 3 squared is 9 so we add “-9” to our equation.

Finally we bring down the constant “10” or anything that isn’t with an ‘X’ with it.
We can then do -9 10 giving us -1.

Therefore our final equation is :

(x 3)^2 -1
Last edited by 14ahussainAH; 1 month ago
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1 month ago
#4
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1 month ago
#5
(Original post by 14ahussainAH)
+1 at the end?
https://www.mathsisfun.com/algebra/c...ng-square.html
Is pretty good.
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1 month ago
#6
(Original post by mqb2766)
+1 at the end?
https://www.mathsisfun.com/algebra/c...ng-square.html
Is pretty good.
What do you mean by +1 at the end? There isn’t a +1
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1 month ago
#7
(Original post by 14ahussainAH)
What do you mean by +1 at the end? There isn’t a +1
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1 month ago
#8
(Original post by mqb2766)
Oh shoot. I’m so sorry I made a mistake. It’s +1. Yea you are right. I didn’t realise it
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1 month ago
#9

Just to make it clear I made a mistake. And the following image is the correct one.
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