Add the polynomials. $5 z ^ { 2 } + 4 z + 10 \text { and } - 10 z ^ { 2 } - 8 z + 13$
A) $- 5 z ^ { 4 } - 4 z ^ { 2 } - 23$
B) $- 5 z ^ { 2 } + 4 z - 23$
C) $- 5 z ^ { 2 } - 4 z + 23$

Question

Quizplus · Accepted Answer

To add the polynomials, combine like terms: $5z^2 + (-10z^2) = -5z^2$, $4z + (-8z) = -4z$, and $10 + 13 = 23$. Thus, the sum is $-5z^2 - 4z + 23$.

Add the Polynomials 5z2+4z+10 and −10z2−8z+135 z ^ { 2 } + 4 z + 10 \text { and } - 10 z ^ { 2 } - 8 z + 135z2+4z+10 and −10z2−8z+13

Add the Polynomials $5 z ^ { 2 } + 4 z + 10 \text { and } - 10 z ^ { 2 } - 8 z + 13$