Question

If g(x) = 2x4 + 3x3 - x2, find g(-1).

Answer 1

Answer: The value of g(-1)=-2

Step-by-step explanation:

The given function : $g(x) = 2x^4 + 3x^3 - x^2$

To find the value of g(-1), we  need to substitute x= -1 in the above function, we get

$g(-1) = 2(-1)^4 + 3(-1)^3 - (-1)^2\\\\\text{Simplify}\\\\\Rightarrow\ g(-1)=2(1)+3(-1)-(1)\\\\\Rightarrow\ g(-1)=2-3-1\\\\\Rightarrow\ g(-1)==-2$

Therefore, the value of g(-1)=-2

Answer 2

Plug -1 for x. So
2(-1)^4 + 3(-1)^3 - (-1)^2
2(1)+3(-1)+1
2-3+1
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