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Add these polynomials. \((9x^{3}+2x^{2}-4x+1)+(-5x^{3}-x^{2}-5x+7)\)

A.

$5x^{3}+3x^{2}-9x+8$

B.

$4x^{3}+x^{2}-7x+9$

C.

$14x^{3}+3x^{2}-9x+8$

D.

$4x^{3}+x^{2}-9x+8$

Subtract these polynomials.
\((2x^{3}+5x^{2}-7x-8) - (7x^{3}-8x^{2}+5x-3)\)

A.

\(5x^{3}+13x^{2}+12x-5\)

B.

\(-5x^{3}+13x^{2}-12x-5\)

C.

\(-5x^{3}-13x^{2}-12x+5\)

D.

\(5x^{3}+13x^{2}-12x+5\)

Multiply these polynomials $(3x^{3} + 4x^{2}) . (-3x^{2}+2x+1)$

A.

$-9x^{5}+11x^{3}+4x^{2}$

B.

$9x^{5}+6x^{4}+11x^{3}+4x^{2}$

C.

$9x^{5}-6x^{4}-11x^{3}+4x^{2}$

D.

$-9x^{5}-6x^{4}+11x^{3}+4x^{2}$

Arithmetic with Polynomials & Rational Expres (HSA.APR.A.1)

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