Expand
30a^{2}+17ab-104b^{2}
Evaluate
\left(5a-8b\right)\left(6a+13b\right)
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30a^{2}+65ab-48ba-104b^{2}
Apply the distributive property by multiplying each term of 5a-8b by each term of 6a+13b.
30a^{2}+17ab-104b^{2}
Combine 65ab and -48ba to get 17ab.
30a^{2}+65ab-48ba-104b^{2}
Apply the distributive property by multiplying each term of 5a-8b by each term of 6a+13b.
30a^{2}+17ab-104b^{2}
Combine 65ab and -48ba to get 17ab.
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