Question

(x+4) (x-5) express as a trinomial

Answer 1

Hello!

Answer:

`\Large \boxed{\sf x^(2) -x-20}`

Explanation:

Expand the parentheses:

`\sf (x+4) (x-5)\\\\= x(x-5)+4(x-5)\\\\= x^(2) -5x+4x-20\\\\\boxed{\sf = x^(2) -x-20}`