Evaluate
a\left(7-5a\right)
Factor
a\left(7-5a\right)
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-a^{2}+7a-4a^{2}
Combine 4a and 3a to get 7a.
-5a^{2}+7a
Combine -a^{2} and -4a^{2} to get -5a^{2}.
a\left(-5a+7\right)
Factor out a.
-5a+7
Consider -a+4+3-4a. Multiply and combine like terms.
a\left(-5a+7\right)
Rewrite the complete factored expression.
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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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