Evaluate
\left(x+5\right)\left(x^{2}-5\right)+25
Expand
x^{3}+5x^{2}-5x
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x^{3}+5x^{2}-5x-25+25
Use the distributive property to multiply x^{2}-5 by x+5.
x^{3}+5x^{2}-5x
Add -25 and 25 to get 0.
x^{3}+5x^{2}-5x-25+25
Use the distributive property to multiply x^{2}-5 by x+5.
x^{3}+5x^{2}-5x
Add -25 and 25 to get 0.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
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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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