The Student Room Group

Is this MathsGenie worksheet answer wrong?

I was going through this MathsGenie practice sheet on algebraic fractions https://www.mathsgenie.co.uk/resources/7-algebraic-fractionsans.pdf And apparently got question 6 slightly wrong - I got x+9 over 2x-3.

But I couldn't figure out how this could be and put into Google: https://www.google.com/search?q=2x%5E2-3x%2B4x-6+factorised

Which seems to be telling me I got it right and the worksheet is wrong. Can anyone confirm either way? If it is wrong I might have to look for a worksheet resource other than MathsGenie because I need to be able to trust the answers I'm getting at this stage without wasting further time checking them
Reply 1
Original post by The_Architect
I was going through this MathsGenie practice sheet on algebraic fractions https://www.mathsgenie.co.uk/resources/7-algebraic-fractionsans.pdf And apparently got question 6 slightly wrong - I got x+9 over 2x-3.
But I couldn't figure out how this could be and put into Google: https://www.google.com/search?q=2x%5E2-3x%2B4x-6+factorised
Which seems to be telling me I got it right and the worksheet is wrong. Can anyone confirm either way? If it is wrong I might have to look for a worksheet resource other than MathsGenie because I need to be able to trust the answers I'm getting at this stage without wasting further time checking them

i got the same answer as mathsgenie

what did you factorise the denominator into?
Same I got Mathsgenie's answer.

You put -3x + 4x into google, not +3x - 4x
Be careful with your signs, but otherwise you've got the right idea :smile:
Original post by mymelo
i got the same answer as mathsgenie
what did you factorise the denominator into?

x and 2. I could have made it -2 to get the -3 that MathsGenie got but that would also have made it -2x.
Reply 4
Original post by The_Architect
x and 2. I could have made it -2 to get the -3 that MathsGenie got but that would also have made it -2x.

if you try expanding your answer you'll see the signs are incorrect. it's a simple mistake that people make all the time so don't worry
Original post by Super Sprinkles
Same I got Mathsgenie's answer.
You put -3x + 4x into google, not +3x - 4x
Be careful with your signs, but otherwise you've got the right idea :smile:

Sorry I didn't see this, thanks a lot for pointing out where I went wrong with Google!
Original post by mymelo
if you try expanding your answer you'll see the signs are incorrect. it's a simple mistake that people make all the time so don't worry

Thank youu, I appreciate it a lot

Quick Reply