Question

Find the value of xcube-8xsquare+14x-7 when x= -1?
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Answer 1

Step-by-step explanation:

x³-8x²+14x-7

if x=-1

then

=(-1)³-8(-1)²+14(-1)-7

=-1-8-14-7

=-16-14

=-20

therefore answer is -20

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Answer 2

Answer:

x^3-8x^2+14x-7

putting value of x= -1

(-1)^3 -8(-1)^2 +14(-1) -7

-1-8-14-7

-30 ans.

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