Subtract the polynomials.
-$\left( 8 x ^ { 6 } - 8 x ^ { 4 } + 12 \right) - \left( 4 x ^ { 6 } + 13 x ^ { 4 } - 8 \right)$
A) $4 x ^ { 6 } - 21 x ^ { 4 } + 20$
B) $4 x ^ { 6 } - 4 x ^ { 4 } + 4$
C) $3 x ^ { 10 }$
D) $4 x ^ { 6 } - 21 x ^ { 4 } + 4$

Question

Quizplus · Accepted Answer

Subtracting the polynomials gives: $8x^6 - 8x^4 + 12 - (4x^6 + 13x^4 - 8) = 8x^6 - 4x^6 - 8x^4 - 13x^4 + 12 + 8 = 4x^6 - 21x^4 + 20$.

Subtract the Polynomials (8x6−8x4+12)−(4x6+13x4−8)\left( 8 x ^ { 6 } - 8 x ^ { 4 } + 12 \right) - \left( 4 x ^ { 6 } + 13 x ^ { 4 } - 8 \right)(8x6−8x4+12)−(4x6+13x4−8)

Subtract the Polynomials $\left( 8 x ^ { 6 } - 8 x ^ { 4 } + 12 \right) - \left( 4 x ^ { 6 } + 13 x ^ { 4 } - 8 \right)$