Simplify the expression. $$\left( 20 z ^ { 2 } + 10 z + 6 \right) + \left( 9 z ^ { 2 } + 9 z + 1 \right)$$
A) $29 z ^ { 2 } + 10 z + 7$
B) $29 z ^ { 2 } + 19 z + 7$
C) $29 z ^ { 2 } + 19 z$
D) $20 z ^ { 2 } + 19 z + 7$
E)none of these

Question

Quizplus · Accepted Answer

To simplify the expression, combine like terms: $20z^2 + 9z^2 = 29z^2$, $10z + 9z = 19z$, and $6 + 1 = 7$. Thus, the simplified expression is $29z^2 + 19z + 7$.

Simplify the Expression (20z2+10z+6)+(9z2+9z+1)\left( 20 z ^ { 2 } + 10 z + 6 \right) + \left( 9 z ^ { 2 } + 9 z + 1 \right)(20z2+10z+6)+(9z2+9z+1)

Simplify the Expression $\left( 20 z ^ { 2 } + 10 z + 6 \right) + \left( 9 z ^ { 2 } + 9 z + 1 \right)$