Question

Spot the error(s)

Answer 1

also i dont know how to do the steps between the question marks
or the remaining step

Answer 2

\[3a^2+ba+3a^2-b^2-3ab=6a^2-2ab-b^2 NOT 6a^2-ab-b^2\]

Answer 3

you are quite right @mertsj

Answer 4

i sure there are more though

Answer 5

And the factors are (2a+b)(3a-b)

Answer 6

So it must be that 3a-b=b in order to reduce to (2a+b)/4

Answer 7

are you sure about those factors?

Answer 8

No. They are wrong.

Answer 9

\[(2a+b)(3a-b)=6a^2-2ab+3ab-b^2=6a^2+ab-b^2\]

Answer 10

It won't factor.

Answer 11

that is one of the reason i believe i have made errors

Answer 12

or should i try completing the square

Answer 13

actually that wont work because of the 6

Answer 14

alternatively can you explain the method employed in the back of the book, specifically how to get form the second to the third line

Answer 15

Well where are all the smart people.

Answer 16

i'll repost with that correction

Answer 17

That is a a solid piece of work cinar
thank you very much,