Collect like terms.
-$4 x^{2} y+9 z^{2} y+9 x^{2} y-4 z^{2} y$
A) $18 z^{2} y$
B) $5 x^{2} y+13 z^{2} y$
C) $18 x^{2} y$
D) $13 x^{2} y+5 z^{2} y$

Name: Collect like terms. -$4 x^{2} y+9 z^{2} y+9 x^{2} y-4 z^{2} y$ A) $18 z^{2} y$ B) $5 x^{2} y+13 z^{2} y$ C) $18 x^{2} y$ D) $13 x^{2} y+5 z^{2} y$
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Question

Quizplus · Accepted Answer

To collect like terms, combine the coefficients of terms with the same variable parts. $4x^{2}y$ and $9x^{2}y$ combine to $13x^{2}y$, and $9z^{2}y$ and $-4z^{2}y$ combine to $5z^{2}y$.

Collect Like Terms 4x2y+9z2y+9x2y−4z2y4 x^{2} y+9 z^{2} y+9 x^{2} y-4 z^{2} y4x2y+9z2y+9x2y−4z2y

Collect Like Terms $4 x^{2} y+9 z^{2} y+9 x^{2} y-4 z^{2} y$