Add the polynomials.
-$\left( 6 x ^ { 2 } - 3 x + 8 \right) + \left( 3 x ^ { 2 } - 3 x - 2 \right)$
A) $9 x ^ { 4 } - 6 x ^ { 2 } + 6$
B) $9 x ^ { 2 } - 3 x + 6$
C) $18 x ^ { 2 } - 3 x + 6$
D) $9 x ^ { 2 } - 6 x + 6$

Question

Quizplus · Accepted Answer

Combine like terms: $6x^2 + 3x^2 = 9x^2$, $-3x - 3x = -6x$, $8 - 2 = 6$.

Add the Polynomials (6x2−3x+8)+(3x2−3x−2)\left( 6 x ^ { 2 } - 3 x + 8 \right) + \left( 3 x ^ { 2 } - 3 x - 2 \right)(6x2−3x+8)+(3x2−3x−2)

Add the Polynomials $\left( 6 x ^ { 2 } - 3 x + 8 \right) + \left( 3 x ^ { 2 } - 3 x - 2 \right)$