3. Find the values of the following expressions, when
x = -2:
(vi) 7x² + 3x + 4x³ +8
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Step-by-step explanation:
7x² + 3x + 4x³ +8
7(-2)² + 3(-2) + 4(-2)³ +8
28 -6 -32 + 8
= -2
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