simplify and evaluate
3x(5x+7)+4(2-x) for x=-2
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Step-by-step explanation:
Given,
3x(5x+7)+4(2-x)
for x = -2
Then,
= 3(-2){5(-2)+7}+4[2-(-2)]
= -6{-10+7}+4[2+2]
= -6{-3}+4{4}
= 18 + 16
= 34
∴ For x = -2 the value of 3x(5x+7)+4(2-x) is 34
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