Enrhifo
\frac{\left(a-4b\right)^{2}}{36}
Ehangu
-\frac{2ab}{9}+\frac{4b^{2}}{9}+\frac{a^{2}}{36}
Rhannu
Copïo i clipfwrdd
\frac{1}{36}a^{2}-\frac{2}{9}ab+\frac{4}{9}b^{2}
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(\frac{1}{6}a-\frac{2}{3}b\right)^{2}.
\frac{1}{36}a^{2}-\frac{2}{9}ab+\frac{4}{9}b^{2}
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(\frac{1}{6}a-\frac{2}{3}b\right)^{2}.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
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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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Terfynau
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