f(x)=x^4+4x^3+8x^2-8x^2-8x-7;f(6)

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1 Answer

x^4 +4x^3 +8x^2 -8x^2 -8x -7

note that 8x^2 kansel -8x^2

yu hav x^4 +4x^3 -8x -7 at x=6

6^4=1296;

x^3=216, so 4x^3=864

-8x=-8*6=-48

1296 +864 -48-7=2105
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