Answer:
4x^2-16x-20
Step-by-step explanation:
(x-5)(x+1)=x^2-5x+x-5=x^2-4x-5
leading coefficient=4
which means that 4(x^2-4x-5)=4x^2-16x-20 is the answer.
Answer:
5
Step-by-step explanation:
First multiply inside of the parenthesis with 3 then add the like terms
3x + 6 - 6 = 15 ➡ 3x = 15 divide both sides with 3 and x = 5
Answer:
-4 I think
Step-by-step explanation:
