Evaluate
\frac{9\left(a+b\right)}{4}
Factor
\frac{9\left(a+b\right)}{4}
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\frac{9}{4}a+b+\frac{5}{4}b
Combine a and \frac{5}{4}a to get \frac{9}{4}a.
\frac{9}{4}a+\frac{9}{4}b
Combine b and \frac{5}{4}b to get \frac{9}{4}b.
\frac{4a+4b+5a+5b}{4}
Factor out \frac{1}{4}.
9a+9b
Consider 4a+4b+5a+5b. Multiply and combine like terms.
9\left(a+b\right)
Consider 9a+9b. Factor out 9.
\frac{9\left(a+b\right)}{4}
Rewrite the complete factored expression.
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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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