Question

For the polynomial p (x)=2xcube +6x square-2x+9 find P (-1)

Answer 1

Answer:

p(x)= 2x³+6x²-2x+9

p(-1)=2(-1)³+6(-1)²-2(-1)+9

0 = -2+6+2+9

0 = -2+17

0 = 15

Answer 2

Answer:

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Step-by-step explanation:

p(x)=2x³+6x²-2x+9

p(-1)=2×(-1)³+6(-1)²-2×-1+9

        =-2+6+2+9

     p(-1)   =15