Question

Factor the trinomial.
5(a + b)^2 + 9(a + b) − 2

Answer 1

can you factor \(5x^2+9x-2\) ?

Answer 2

no

Answer 3

lol neither can i, so i cheated

Answer 4

turns out
\[5x^2+9x-2=(x+2)(5x-1)\]

Answer 5

replace \(x\) by \(a+b\) and you are done

Answer 6

oh i see. makes so much sense.
so thats all you have to do?

Answer 7

u can also use the quadratic formula

Answer 8

thanks!

Answer 9

yes, that is all you have to do
make sure to use parentheses when you replace

Answer 10

will you plug the two solutions back into the trinomial?

Answer 11

\[(x+2)(5x-1)\\
(a+b+2)(5(a+b)-1)\]

Answer 12

thank you! i finally understood!