Evaluate
a\left(10a+3\right)
Factor
a\left(10a+3\right)
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10a^{2}+a+2a
Combine 2a^{2} and 8a^{2} to get 10a^{2}.
10a^{2}+3a
Combine a and 2a to get 3a.
a\left(10a+3\right)
Factor out a.
10a+3
Consider 2a+1+8a+2. Multiply and combine like terms.
a\left(10a+3\right)
Rewrite the complete factored expression.
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