Evaluate
2\left(a-2b\right)\left(2a+b\right)
Expand
4a^{2}-6ab-4b^{2}
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4a^{2}-8ab+2ba-4b^{2}
Apply the distributive property by multiplying each term of 2a+b by each term of 2a-4b.
4a^{2}-6ab-4b^{2}
Combine -8ab and 2ba to get -6ab.
4a^{2}-8ab+2ba-4b^{2}
Apply the distributive property by multiplying each term of 2a+b by each term of 2a-4b.
4a^{2}-6ab-4b^{2}
Combine -8ab and 2ba to get -6ab.
Examples
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Limits
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