x=-1 find the value of pollynomial 2x-2x³+7 using given value of x.
Answers
Answered by
1
Answer:
7
Step-by-step explanation:
x= -1
Substituting it in equation we get
2(-1)-2(-1)^3+7
=-2-(-2)+7
=-2+2+7
=7
Hence the value of equation is 7.
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Answered by
1
Answer:
P(x) = 2x-2x^3+7
p (-1)= 2×(-1) - 2×(-1)^3 +7
= (-2) -2 × (-1) +7
= -2 +2+7
= -2 +9
= 7 .
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