Question

find the value of f(x)=2x2+7x+3 at x=-2​

Answer 1

Answer:

2×2+7(-2)+3

4-14+3

-7

Answer 2

I hope u will understand the solution....

f(x) = 2x2+7x+3

f(x) = 2x2+7x+3f(-2) = 2(-2)^2+7(-2)+3

f(x) = 2x2+7x+3f(-2) = 2(-2)^2+7(-2)+3f(-2) = 8-14+3

f(x) = 2x2+7x+3f(-2) = 2(-2)^2+7(-2)+3f(-2) = 8-14+3f(-2) = 11-14 {8+3=11-14}

f(x) = 2x2+7x+3f(-2) = 2(-2)^2+7(-2)+3f(-2) = 8-14+3f(-2) = 11-14 {8+3=11-14}f(-2)= -3

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