Evaluate
\left(a+b\right)\left(a+2b\right)
Expand
a^{2}+3ab+2b^{2}
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a^{2}+ab+2ba+2b^{2}
Apply the distributive property by multiplying each term of a+2b by each term of a+b.
a^{2}+3ab+2b^{2}
Combine ab and 2ba to get 3ab.
a^{2}+ab+2ba+2b^{2}
Apply the distributive property by multiplying each term of a+2b by each term of a+b.
a^{2}+3ab+2b^{2}
Combine ab and 2ba to get 3ab.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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Linear equation
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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