===================================================
Work Shown:
Q(x) = 4x^2 + 5x - 7
Q(-1) = 4(-1)^2 + 5(-1) - 7 .... replace every x with -1; use PEMDAS
Q(-1) = 4(1) + 5(-1) - 7
Q(-1) = 4 - 5 - 7
Q(-1) = -1 - 7
Q(-1) = -8
Answer: -8
Step-by-step explanation:
Q(x) = 4x² + 5x - 7
Q(-1) = 4(-1)² + 5(-1) - 7
= 4(1) + -5 -7
= 4 - 5 -7
= -8
