Question

If x = -2 and y = 1, find the value of the expression 4x² + 3x²y – 4xy²​

Answer 1

36

Explanation:

given the expression

4x² + 3x²y - 4xy²

substitute x = - 2 and y = 1 into the expression

= 4(- 2)² + 3(- 2)²(1) - 4(- 2)(1)²

= 4(4) + 3(4)(1) - 4(- 2)(1)

= 16 + 12 + 8

= 36