Evaluate
y\left(y\left(y+6\right)+7\right)
Expand
y^{3}+6y^{2}+7y
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y^{3}-y^{2}+7y^{2}+7y
Use the distributive property to multiply y^{2} by y-1.
y^{3}+6y^{2}+7y
Combine -y^{2} and 7y^{2} to get 6y^{2}.
y^{3}-y^{2}+7y^{2}+7y
Use the distributive property to multiply y^{2} by y-1.
y^{3}+6y^{2}+7y
Combine -y^{2} and 7y^{2} to get 6y^{2}.
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