Datrys 4s/(25s^2-9t^2)-s/(5s-3t)

$$\frac { 4 s } { ( 25 s ^ { 2 } - 9 t ^ { 2 } ) } - \frac { s } { ( 5 s - 3 t ) }$$

Enrhifo

$$\frac{s\left(4-3t-5s\right)}{25s^{2}-9t^{2}}$$

Camau Ateb Byr

Ffactora 25s^{2}-9t^{2}.

$$\frac{4s}{\left(5s-3t\right)\left(5s+3t\right)}-\frac{s}{5s-3t}$$

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin \left(5s-3t\right)\left(5s+3t\right) a 5s-3t yw \left(5s-3t\right)\left(5s+3t\right). Lluoswch \frac{s}{5s-3t} â \frac{5s+3t}{5s+3t}.

$$\frac{4s}{\left(5s-3t\right)\left(5s+3t\right)}-\frac{s\left(5s+3t\right)}{\left(5s-3t\right)\left(5s+3t\right)}$$

Gan fod gan \frac{4s}{\left(5s-3t\right)\left(5s+3t\right)} a \frac{s\left(5s+3t\right)}{\left(5s-3t\right)\left(5s+3t\right)} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{4s-s\left(5s+3t\right)}{\left(5s-3t\right)\left(5s+3t\right)}$$

Gwnewch y gwaith lluosi yn 4s-s\left(5s+3t\right).

$$\frac{4s-5s^{2}-3st}{\left(5s-3t\right)\left(5s+3t\right)}$$

Ehangu \left(5s-3t\right)\left(5s+3t\right).

$$\frac{4s-5s^{2}-3st}{25s^{2}-9t^{2}}$$

Ffactor

$$\frac{s\left(4-3t-5s\right)}{25s^{2}-9t^{2}}$$