$\displaystyle 3y^2-y^2$ Is this correct? $\displaystyle y^2(-3)$
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Originally Posted by Mukilab $\displaystyle 3y^2-y^2$ Is this correct? $\displaystyle y^2(-3)$ No. $\displaystyle 3y^2 - y^2 = 3y^2 - 1y^2$. How many $\displaystyle y^2$ is this?
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