Question

evaluate the following algebraic expressions
x²-3x²y-4x+7 if x=-2,y=2​

Answer 1

x²-3x²y-4x+7

putting X = -2 and y = 2

(-2)² - 3(-2)²(2) - 4 (-2) + 7

4 - 24 + 8 + 7

-20 + 15

-5

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