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What is the remainder when 2x cubed plus x minus 7 is divided by x plus 2 using the remainder theorem?
Wiki User
∙ 12y ago
Using the remainder theorem:-
The function of x becomes f(-2) because the divisor is x+2
Substitute -2 for x in the dividend: 2x3+x-7
When: f(-2) = 2(-2)3+(-2)-7 = -25
Then: -25 is the remainder
Wiki User
∙ 12y ago
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