If x = -2 and y = 1, find the value of the expression 4x²
+ 3x²
y – 4xy²
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Step-by-step explanation:
4x²+ 3x² = 4(-2)square +3(-2)square
= 4(4) + 3(4)
=16 + 12
=28
y – 4xy² = (1) - 4 (-2)(1)square
=1 - (+8)
=1-8
= -7
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