Ehangu
13a^{3}+90a^{2}+72a+78
Enrhifo
2\left(2a+3\right)^{3}-3\left(a-2\right)^{3}
Rhannu
Copïo i clipfwrdd
2\left(8a^{3}+36a^{2}+54a+27\right)-3\left(a-2\right)^{3}
Defnyddio'r theorem binomaidd \left(p+q\right)^{3}=p^{3}+3p^{2}q+3pq^{2}+q^{3} i ehangu'r \left(2a+3\right)^{3}.
16a^{3}+72a^{2}+108a+54-3\left(a-2\right)^{3}
Defnyddio’r briodwedd ddosbarthu i luosi 2 â 8a^{3}+36a^{2}+54a+27.
16a^{3}+72a^{2}+108a+54-3\left(a^{3}-6a^{2}+12a-8\right)
Defnyddio'r theorem binomaidd \left(p-q\right)^{3}=p^{3}-3p^{2}q+3pq^{2}-q^{3} i ehangu'r \left(a-2\right)^{3}.
16a^{3}+72a^{2}+108a+54-3a^{3}+18a^{2}-36a+24
Defnyddio’r briodwedd ddosbarthu i luosi -3 â a^{3}-6a^{2}+12a-8.
13a^{3}+72a^{2}+108a+54+18a^{2}-36a+24
Cyfuno 16a^{3} a -3a^{3} i gael 13a^{3}.
13a^{3}+90a^{2}+108a+54-36a+24
Cyfuno 72a^{2} a 18a^{2} i gael 90a^{2}.
13a^{3}+90a^{2}+72a+54+24
Cyfuno 108a a -36a i gael 72a.
13a^{3}+90a^{2}+72a+78
Adio 54 a 24 i gael 78.
2\left(8a^{3}+36a^{2}+54a+27\right)-3\left(a-2\right)^{3}
Defnyddio'r theorem binomaidd \left(p+q\right)^{3}=p^{3}+3p^{2}q+3pq^{2}+q^{3} i ehangu'r \left(2a+3\right)^{3}.
16a^{3}+72a^{2}+108a+54-3\left(a-2\right)^{3}
Defnyddio’r briodwedd ddosbarthu i luosi 2 â 8a^{3}+36a^{2}+54a+27.
16a^{3}+72a^{2}+108a+54-3\left(a^{3}-6a^{2}+12a-8\right)
Defnyddio'r theorem binomaidd \left(p-q\right)^{3}=p^{3}-3p^{2}q+3pq^{2}-q^{3} i ehangu'r \left(a-2\right)^{3}.
16a^{3}+72a^{2}+108a+54-3a^{3}+18a^{2}-36a+24
Defnyddio’r briodwedd ddosbarthu i luosi -3 â a^{3}-6a^{2}+12a-8.
13a^{3}+72a^{2}+108a+54+18a^{2}-36a+24
Cyfuno 16a^{3} a -3a^{3} i gael 13a^{3}.
13a^{3}+90a^{2}+108a+54-36a+24
Cyfuno 72a^{2} a 18a^{2} i gael 90a^{2}.
13a^{3}+90a^{2}+72a+54+24
Cyfuno 108a a -36a i gael 72a.
13a^{3}+90a^{2}+72a+78
Adio 54 a 24 i gael 78.
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}