Question

Please Solve it by steps.

Answer 1

Answer:

Let, p(x, y) = 4x(2x - y) - 3x(x - 2y) - 2x + 1

= 8x² - 4xy - 3x² + 6xy - 2x + 1

= 5x² + 2xy - 2x + 1

Now, p(-1, 2) = 5(- 1)² + 2(- 1)(2) - 2(- 1) + 1

= 5 - 4 + 2 + 1

= 1 + 3 = 4 (answer).