Ehangu
49x^{2}-280x+400
Enrhifo
\left(7x-20\right)^{2}
Graff
Rhannu
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49x^{2}-280x+400
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(7x-20\right)^{2}.
49x^{2}-280x+400
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(7x-20\right)^{2}.
Enghreifftiau
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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\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 ) }
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}