P(x) = 2x³ - 13x² - 17x +12
Find p(-1)
And p(-2)
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Answer:
p ( -1 ) = 2.-1^3 - 13.-1^2 - 17.-1 + 12
= 2.-1 - 13.1 - ( -17 ) + 12
= -2 - 13 + 17 + 12
= -15 + 29
= 14
p ( -2 ) = 2.-2^3 - 13.-2^2 - 17.-2 + 12
= 2.-8 - 13.4 - ( -34 ) + 12
= -16 - 52 + 34 + 12
= -68 + 46
= -22
hope it helps
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