Question

(-5q^2 + 6q + 7) - (-q^2 + 4q)

Answer 1

Answer:

-4q^2+2q+7

Remove unecessary parenthesis

-5q^2+6q+7-(-q^2+4q)

when there is a - in front of an expression in parenthesis, change the sign of each term in the expression

-5q^2+6q+7+q^2-4q

collect like terms -5q^2 and q^2

-4q^2+6q+7-4q

-4q^2+2q+7

Answer 2

Steps to solve:

(-5q^2 + 6q + 7) - (-q^2 + 4q)

~Distribute the left side

-5q^2 + 6q + 7 + q^2 - 4q

~Combine like terms

-4q^2 + 2q + 7

Best of Luck!