Datrys 72*72-52*52/62*2

$$\frac { 72 \times 72 - 52 \times 52 } { 62 \times 2 }$$

Enrhifo

$$20$$

Camau Ateb

Lluosi 72 a 72 i gael 5184.

$$\frac{5184-52\times 52}{62\times 2}$$

Lluosi 52 a 52 i gael 2704.

$$\frac{5184-2704}{62\times 2}$$

Tynnu 2704 o 5184 i gael 2480.

$$\frac{2480}{62\times 2}$$

Lluosi 62 a 2 i gael 124.

$$\frac{2480}{124}$$

Rhannu 2480 â 124 i gael 20.

$$20$$

Ffactor

$$2^{2}\times 5$$