Question

Name the binomial you can multiply by (x + 9) to get the product .x2+5x-36

a

Answer 1

\[(x+9)(x+a)=x^2+5x-36\]What would "a" have to be to ensure \[a+9 = 5\] and \[9a=-36\]?

Answer 2

awas typo sorry

Answer 3

have you tried \[\large x^2 +5x - 36 \div x+9\]

Answer 4

i mean \[\huge (x^2 + 5x - 36) \div (x+9)\]

Answer 5

yes i just cant get it rioght

Answer 6

Can you factor x^2 + 5x - 36

Answer 7

\[\huge \frac{x^2 +5x - 36}{x+9} \leftarrow \text{factor out numerator}\]

Answer 8

i have
a.4-x
b.x+6
c.x-4
d.x-6

Answer 9

and none of them seem to be it

Answer 10

oh it's one of them ;D factor out x^2 + 5x - 36 like @Chlorophyll said

Answer 11

b

Answer 12

@joel123 why b?
Could you show your calculation here?