Expand
4y^{2}+8y-21
Evaluate
\left(2y-3\right)\left(2y+7\right)
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4y^{2}+14y-6y-21
Apply the distributive property by multiplying each term of 2y-3 by each term of 2y+7.
4y^{2}+8y-21
Combine 14y and -6y to get 8y.
4y^{2}+14y-6y-21
Apply the distributive property by multiplying each term of 2y-3 by each term of 2y+7.
4y^{2}+8y-21
Combine 14y and -6y to get 8y.
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