Datrys 1:-x^3+4

$$1 : - x ^ { 3 } + 4$$

Enrhifo

$$4-\frac{1}{x^{3}}$$

Camau Ateb Byr

Ffactora -x^{3}.

$$\frac{1}{-x^{3}}+4$$

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluoswch 4 â \frac{-x^{3}}{-x^{3}}.

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

Gan fod gan \frac{1}{-x^{3}} a \frac{4\left(-1\right)x^{3}}{-x^{3}} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

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

Gwnewch y gwaith lluosi yn 1+4\left(-1\right)x^{3}.

$$\frac{1-4x^{3}}{-x^{3}}$$

Ffactor

$$\frac{4x^{3}-1}{x^{3}}$$