Evaluate
4x^{2}+10x+20
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4x^{2}+10x+20
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Quiz
Polynomial
5 problems similar to:
( 7 x ^ { 2 } + 2 x ) + ( 4 x + 8 ) - ( 3 x ^ { 2 } - 4 x - 12 )
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7x^{2}+6x+8-\left(3x^{2}-4x-12\right)
Combine 2x and 4x to get 6x.
7x^{2}+6x+8-3x^{2}+4x+12
To find the opposite of 3x^{2}-4x-12, find the opposite of each term.
4x^{2}+6x+8+4x+12
Combine 7x^{2} and -3x^{2} to get 4x^{2}.
4x^{2}+10x+8+12
Combine 6x and 4x to get 10x.
4x^{2}+10x+20
Add 8 and 12 to get 20.
7x^{2}+6x+8-\left(3x^{2}-4x-12\right)
Combine 2x and 4x to get 6x.
7x^{2}+6x+8-3x^{2}+4x+12
To find the opposite of 3x^{2}-4x-12, find the opposite of each term.
4x^{2}+6x+8+4x+12
Combine 7x^{2} and -3x^{2} to get 4x^{2}.
4x^{2}+10x+8+12
Combine 6x and 4x to get 10x.
4x^{2}+10x+20
Add 8 and 12 to get 20.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}