Evaluate
6\left(y+9\right)^{2}
Expand
6y^{2}+108y+486
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6\left(y+9\right)^{2}
Multiply y+9 and y+9 to get \left(y+9\right)^{2}.
6\left(y^{2}+18y+81\right)
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(y+9\right)^{2}.
6y^{2}+108y+486
Use the distributive property to multiply 6 by y^{2}+18y+81.
6\left(y+9\right)^{2}
Multiply y+9 and y+9 to get \left(y+9\right)^{2}.
6\left(y^{2}+18y+81\right)
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(y+9\right)^{2}.
6y^{2}+108y+486
Use the distributive property to multiply 6 by y^{2}+18y+81.
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