Question

simplify
(49a^2-36b^2)/(49a-42b)

Answer 1

Can you factor 49a^2-36b^2 ?

Answer 2

yeah (7a-6b)(7a-6b)

Answer 3

good

Answer 4

what about 49a-42b ?

Answer 5

oh wait, I misread

Answer 6

it should be (7a-6b)(7a+6b)

Answer 7

since it's a difference of squares

Answer 8

so (7a-6b)(7a+6b)/(7a-6b)

Answer 9

close

Answer 10

the denominator should be 7(7a-6b)

Answer 11

because you factor out 7

Answer 12

So....

\[\Large \frac{49a^2-36b^2}{49a-42b}\]

\[\Large \frac{(7a-6b)(7a+6b)}{49a-42b}\]

\[\Large \frac{(7a-6b)(7a+6b)}{7(7a-6b)}\]

\[\Large \frac{7a+6b}{7}\]

Answer 13

yeah i see it now

Answer 14

thank you!

Answer 15

you're welcome