Evaluate
x^{4}-4x^{3}-6x^{2}+20x-8
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x^{4}-4x^{3}-6x^{2}+20x-8
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x^{4}-4x^{3}-2x^{2}+12x+9-4x^{2}+8x-17
Square x^{2}-2x-3.
x^{4}-4x^{3}-6x^{2}+12x+9+8x-17
Combine -2x^{2} and -4x^{2} to get -6x^{2}.
x^{4}-4x^{3}-6x^{2}+20x+9-17
Combine 12x and 8x to get 20x.
x^{4}-4x^{3}-6x^{2}+20x-8
Subtract 17 from 9 to get -8.
x^{4}-4x^{3}-2x^{2}+12x+9-4x^{2}+8x-17
Square x^{2}-2x-3.
x^{4}-4x^{3}-6x^{2}+12x+9+8x-17
Combine -2x^{2} and -4x^{2} to get -6x^{2}.
x^{4}-4x^{3}-6x^{2}+20x+9-17
Combine 12x and 8x to get 20x.
x^{4}-4x^{3}-6x^{2}+20x-8
Subtract 17 from 9 to get -8.
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Limits
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