Add the polynomials.
-$\left( 7 y ^ { 4 } + 5 y ^ { 3 } \right) + \left( 8 y ^ { 4 } + 3 y ^ { 3 } \right)$
A) $15 y ^ { 4 } + 8 y ^ { 3 }$
B) $23 y ^ { 14 }$
C) $15 y ^ { 8 } + 8 y ^ { 6 }$
D) $23 y ^ { 7 }$

Question

Quizplus · Accepted Answer

When adding polynomials, you combine like terms. Here, $7y^4 + 8y^4 = 15y^4$ and $5y^3 + 3y^3 = 8y^3$, resulting in $15y^4 + 8y^3$.

Add the Polynomials (7y4+5y3)+(8y4+3y3)\left( 7 y ^ { 4 } + 5 y ^ { 3 } \right) + \left( 8 y ^ { 4 } + 3 y ^ { 3 } \right)(7y4+5y3)+(8y4+3y3)

Add the Polynomials $\left( 7 y ^ { 4 } + 5 y ^ { 3 } \right) + \left( 8 y ^ { 4 } + 3 y ^ { 3 } \right)$