Evaluate
2x^{2}+7x-13
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2x^{2}+7x-13
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3x^{2}-3-\left(x^{2}-7x+10\right)
Use the distributive property to multiply 3 by x^{2}-1.
3x^{2}-3-x^{2}+7x-10
To find the opposite of x^{2}-7x+10, find the opposite of each term.
2x^{2}-3+7x-10
Combine 3x^{2} and -x^{2} to get 2x^{2}.
2x^{2}-13+7x
Subtract 10 from -3 to get -13.
3x^{2}-3-\left(x^{2}-7x+10\right)
Use the distributive property to multiply 3 by x^{2}-1.
3x^{2}-3-x^{2}+7x-10
To find the opposite of x^{2}-7x+10, find the opposite of each term.
2x^{2}-3+7x-10
Combine 3x^{2} and -x^{2} to get 2x^{2}.
2x^{2}-13+7x
Subtract 10 from -3 to get -13.
Examples
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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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