whan x=-1,what is the value of the polynomial 2x3+2x
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Answer:
when x=(-1) ,The value of the polynomial 2x³+2x =
(-4)
Step-by-step explanation:
If x= (-1),
2x³+2x
= 2(-1)³+2(-1) [(-1)³ = -1×-1×-1=(-1)]
=2(-1)+(-2)
=(-2)+(-2)
=(-4)
Hope you understood..
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