( - 7,4 ) - ( + 6 ) + ( - 8,1 ) - ( - 7,4 )
Evaluate
-14,1
Factor
-14,1
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-13,4-8,1-\left(-7,4\right)
Subtract 6 from -7,4 to get -13,4.
-21,5-\left(-7,4\right)
Subtract 8,1 from -13,4 to get -21,5.
-21,5+7,4
The opposite of -7,4 is 7,4.
-14,1
Add -21,5 and 7,4 to get -14,1.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
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
\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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