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