Question

Completely factor the polynomial.

X2-4x-45

Answer 1

X2=(x squared)

Answer 2

\[(x-9)(x+5)\]

Answer 3

can you explain how you got that answer please?

Answer 4

have to think of two numbers whose product is -45 and whose sum is -4

Answer 5

since the product is negative one of the numbers must be negative and the other positive

Answer 6

i get it now!! lol

Answer 7

and they must be 4 apart since their difference is 4