Rešite [(x-1/2y)^{3}+3/2xy*(x-1/2y)]*(1/8y^{3}+x^3)-(-frac{1}{4}y^2)^3-x^6

$$[ ( x - \frac { 1 } { 2 } y ) ^ { 3 } + \frac { 3 } { 2 } x y \cdot ( x - \frac { 1 } { 2 } y ) ] \cdot ( \frac { 1 } { 8 } y ^ { 3 } + x ^ { 3 } ) - ( - \frac { 1 } { 4 } y ^ { 2 } ) ^ { 3 } - x ^ { 6 }$$

Ovrednoti

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Koraki rešitve

Uporabite binomski izrek \left(a-b\right)^{3}=a^{3}-3a^{2}b+3ab^{2}-b^{3}, da razširite \left(x-\frac{1}{2}y\right)^{3}.

$$\left(x^{3}-\frac{3}{2}x^{2}y+\frac{3}{4}xy^{2}-\frac{1}{8}y^{3}+\frac{3}{2}xy\left(x-\frac{1}{2}y\right)\right)\left(\frac{1}{8}y^{3}+x^{3}\right)-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Uporabite distributivnost, da pomnožite \frac{3}{2}xy s/z x-\frac{1}{2}y.

$$\left(x^{3}-\frac{3}{2}x^{2}y+\frac{3}{4}xy^{2}-\frac{1}{8}y^{3}+\frac{3}{2}yx^{2}-\frac{3}{4}xy^{2}\right)\left(\frac{1}{8}y^{3}+x^{3}\right)-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Združite -\frac{3}{2}x^{2}y in \frac{3}{2}yx^{2}, da dobite 0.

$$\left(x^{3}+\frac{3}{4}xy^{2}-\frac{1}{8}y^{3}-\frac{3}{4}xy^{2}\right)\left(\frac{1}{8}y^{3}+x^{3}\right)-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Združite \frac{3}{4}xy^{2} in -\frac{3}{4}xy^{2}, da dobite 0.

$$\left(x^{3}-\frac{1}{8}y^{3}\right)\left(\frac{1}{8}y^{3}+x^{3}\right)-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Razmislite o \left(x^{3}-\frac{1}{8}y^{3}\right)\left(\frac{1}{8}y^{3}+x^{3}\right). Množenje je lahko preoblikovano v razliko kvadratov s pravilom: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.

$$\left(x^{3}\right)^{2}-\left(\frac{1}{8}y^{3}\right)^{2}-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Če želite potenco potencirati z drugo potenco, pomnožite eksponente. Pomnožite 3 in 2, da dobite 6.

$$x^{6}-\left(\frac{1}{8}y^{3}\right)^{2}-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Razčlenite \left(\frac{1}{8}y^{3}\right)^{2}.

$$x^{6}-\left(\frac{1}{8}\right)^{2}\left(y^{3}\right)^{2}-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Če želite potenco potencirati z drugo potenco, pomnožite eksponente. Pomnožite 3 in 2, da dobite 6.

$$x^{6}-\left(\frac{1}{8}\right)^{2}y^{6}-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Izračunajte potenco \frac{1}{8} števila 2, da dobite \frac{1}{64}.

$$x^{6}-\frac{1}{64}y^{6}-\left(-\frac{1}{4}y^{2}\right)^{3}-x^{6}$$

Razčlenite \left(-\frac{1}{4}y^{2}\right)^{3}.

$$x^{6}-\frac{1}{64}y^{6}-\left(-\frac{1}{4}\right)^{3}\left(y^{2}\right)^{3}-x^{6}$$

Če želite potenco potencirati z drugo potenco, pomnožite eksponente. Pomnožite 2 in 3, da dobite 6.

$$x^{6}-\frac{1}{64}y^{6}-\left(-\frac{1}{4}\right)^{3}y^{6}-x^{6}$$

Izračunajte potenco -\frac{1}{4} števila 3, da dobite -\frac{1}{64}.

$$x^{6}-\frac{1}{64}y^{6}-\left(-\frac{1}{64}y^{6}\right)-x^{6}$$

Nasprotna vrednost -\frac{1}{64}y^{6} je \frac{1}{64}y^{6}.

$$x^{6}-\frac{1}{64}y^{6}+\frac{1}{64}y^{6}-x^{6}$$

Združite -\frac{1}{64}y^{6} in \frac{1}{64}y^{6}, da dobite 0.

$$x^{6}-x^{6}$$

Združite x^{6} in -x^{6}, da dobite 0.

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Faktoriziraj

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Koraki rešitve

Faktorizirajte \frac{1}{64}.

$$\frac{\left(\left(2x-y\right)^{3}+6xy\left(2x-y\right)\right)\left(y^{3}+8x^{3}\right)+y^{6}-64x^{6}}{64}$$

Poenostavite.

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