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16a^{2}-9
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16a^{2}-9
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\left(-3-\left(-4a\right)\right)\left(3+4a\right)
To find the opposite of 3-4a, find the opposite of each term.
\left(-3+4a\right)\left(3+4a\right)
The opposite of -4a is 4a.
-9-12a+12a+16a^{2}
Apply the distributive property by multiplying each term of -3+4a by each term of 3+4a.
-9+16a^{2}
Combine -12a and 12a to get 0.
\left(-3-\left(-4a\right)\right)\left(3+4a\right)
To find the opposite of 3-4a, find the opposite of each term.
\left(-3+4a\right)\left(3+4a\right)
The opposite of -4a is 4a.
-9-12a+12a+16a^{2}
Apply the distributive property by multiplying each term of -3+4a by each term of 3+4a.
-9+16a^{2}
Combine -12a and 12a to get 0.
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}