Answer :
Answer:
x² + 4x - 45
Step-by-step explanation:
We can use the FOIL (First, Outer, Inner, Last) method to multiply the two binomials.
First: Multiply the first components of the binomials.
Outer: Multiply the first component of the first binomial with the last component of the second binomial.
Inner: Multiply the last component of the first binomial with the first component of the second binomial.
Last: Multiply the last components of the binomials.
(x · x) + (x · 9) + (-5 · x) + (-5 + 9) = x² + 9x - 5x - 45 = x² + 4x - 45
(x-5)(x+9) = x² + 4x - 45
I hope this helps. :)