7. When x = -1 and y = 3, what is the value of 4x2 - 3xy?

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

Substituting x = -1 and y = 3 into the polynomial 4x2 – 3xy gives 4 × (-1)2 – 3× (-1) ×3 = 13 so choose C