Enrhifo
\left(4x-7y\right)\left(4x+y\right)
Ehangu
16x^{2}-24xy-7y^{2}
Rhannu
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16x^{2}-24xy+9y^{2}-16y^{2}
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(4x-3y\right)^{2}.
16x^{2}-24xy-7y^{2}
Cyfuno 9y^{2} a -16y^{2} i gael -7y^{2}.
16x^{2}-24xy+9y^{2}-16y^{2}
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(4x-3y\right)^{2}.
16x^{2}-24xy-7y^{2}
Cyfuno 9y^{2} a -16y^{2} i gael -7y^{2}.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
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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{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]
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
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\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}