Question

Evaluate: 5xy2 – 4x2y if x =4, y = – 1​

Answer 1

Answer:

hope it helps you mate ☺️

Answer 2

Answer:

For x = 2 and y = 1

(-4x2y3) × (-5x2y5)

(-4 × 22 × 13) × (-5 ×22 × 15)

(-4 × 4 × 1) × (-5 × 4 × 1)

-16 × (-20) = 320