Evaluate
-28
Factor
-28
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-6+6-7\times 4
Multiply 3 and 2 to get 6.
0-7\times 4
Add -6 and 6 to get 0.
0-28
Multiply 7 and 4 to get 28.
-28
Subtract 28 from 0 to get -28.
Examples
Quadratic equation
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Linear equation
y = 3x + 4
Arithmetic
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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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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