Enrhifo
\left(7a-6\right)\left(a+6b\right)+6b^{3}-a
Ehangu
7a^{2}+42ab-7a+6b^{3}-36b
Rhannu
Copïo i clipfwrdd
42ab+7a^{2}-36b-6a-\left(a-6b^{3}\right)
Defnyddio’r briodwedd ddosbarthu i luosi 7a-6 â 6b+a.
42ab+7a^{2}-36b-6a-a+6b^{3}
I ddod o hyd i wrthwyneb a-6b^{3}, dewch o hyd i wrthwyneb pob term.
42ab+7a^{2}-36b-7a+6b^{3}
Cyfuno -6a a -a i gael -7a.
42ab+7a^{2}-36b-6a-\left(a-6b^{3}\right)
Defnyddio’r briodwedd ddosbarthu i luosi 7a-6 â 6b+a.
42ab+7a^{2}-36b-6a-a+6b^{3}
I ddod o hyd i wrthwyneb a-6b^{3}, dewch o hyd i wrthwyneb pob term.
42ab+7a^{2}-36b-7a+6b^{3}
Cyfuno -6a a -a i gael -7a.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometreg
4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
699 * 533
Matrics
\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]
Hafaliad ar y pryd
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}