Check the graph below... https://www.desmos.com/calculator/ixujxbczbk......at P(-3) the value of the polynomial = 151


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Use synthetic division to discover P(-3) for P(x)= x^4 -2x^3 - 4x + 4.

You are watching: Use synthetic division to find p(-3) for p(x)=x^4-2x^3-4x+4

(-3)^2 - 2(-3)^3 - 4(-3) -4

9 -54 12 - 4

-61.

I don"t know if im correct or not . . .


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Best Answer

-3 < 1 -2 0 -4 4 >

-3 15 -45 147

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1 -5 15 -49 151

Check the graph below... https://www.desmos.com/calculator/ixujxbczbk......at P(-3) the value of the polynomial = 151


Use man-made department to uncover P(-3) for P(x)= x^4 -2x^3 - 4x + 4.

(-3)^4 - 2(-3^3) -4(-3) + 4

Simplify the following: (-3)^4-2 (-3^3)-4 (-3)+4 (-1)^2 = 1: (-3)^4+2 3^3-4 (-3)+4 3^3 = 3×3^2: (-3)^4+2×3×3^2-4 (-3)+4 3^2 = 9: (-3)^4+2×3×9-4 (-3)+4 3×9 = 27: (-3)^4+2×27-4 (-3)+4 (-3)^4 = (-1)^4×3^4 = 1×3^4: 3^4+2×27-4 (-3)+4 3^4 = (3^2)^2: (3^2)^2+2×27-4 (-3)+4 3^2 = 9: 9^2+2×27-4 (-3)+4 9^2 = 81: 81+2×27-4 (-3)+4 2×27 = 54: 81+54-4 (-3)+4 -4 (-3) = 12: 81+54+12+4 | 1 | | 8 | 1 | 5 | 4 | 1 | 2 + | | 4 1 | 5 | 1: Answer: |=151


Guest Dec 21, 2015
 #7
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Thanks for the understanding


Guest Dec 21, 2015
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