Solve for D
D=31
Assign D
D≔31
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D=-9-4\times 1\left(-10\right)
Calculate 3 to the power of 2 and get 9.
D=-9-4\left(-10\right)
Multiply 4 and 1 to get 4.
D=-9-\left(-40\right)
Multiply 4 and -10 to get -40.
D=-9+40
The opposite of -40 is 40.
D=31
Add -9 and 40 to get 31.
Examples
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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