Problem

The sum of $-5xy+6y^{2}-3x^{2}$ $11y^{2}+7xy-5x^{2}$
and $9x^{2}-11xy+3y^{2}is$
a) $\right)$ $x^{2}-9xy-20y^{2}$
b) $\right)-x^{2}+9xy+20y^{2}$
c) $\right)$ $x^{2}-9xy+20y^{2}$
d) $1\right)$ $x^{2}+9xy-20y^{2}$

7th-9th grade

Algebra

Solution

Qanda teacher - srishthiRa

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