Expand
4a^{2}-21ab-18b^{2}
Evaluate
\left(a-6b\right)\left(4a+3b\right)
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4a^{2}+3ab-24ba-18b^{2}
Apply the distributive property by multiplying each term of a-6b by each term of 4a+3b.
4a^{2}-21ab-18b^{2}
Combine 3ab and -24ba to get -21ab.
4a^{2}+3ab-24ba-18b^{2}
Apply the distributive property by multiplying each term of a-6b by each term of 4a+3b.
4a^{2}-21ab-18b^{2}
Combine 3ab and -24ba to get -21ab.
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