Datrys frac{sqrt{144}}{sqrt{0.4}}-sqrt{2.56}sqrt{2500}

$$\frac{ \sqrt{ 144 } }{ \sqrt{ 0.4 } } - \sqrt{ 2.56 } \sqrt{ 2500 }$$

Enrhifo

$$6\sqrt{10}-80\approx -61.026334039$$

Camau Ateb

Ailysgrifennu rhaniad ail israddau \frac{\sqrt{144}}{\sqrt{0.4}} fel ail isradd y rhaniad \sqrt{\frac{144}{0.4}} a gwneud y swm rhannu.

$$\sqrt{72}-\sqrt{2.56}\sqrt{2500}$$

Ffactora 72=6^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{6^{2}\times 2} fel lluoswm ail israddau \sqrt{6^{2}}\sqrt{2}. Cymryd isradd 6^{2}.

$$6\sqrt{2}-\sqrt{2.56}\sqrt{2500}$$

Cyfrifo ail isradd 2.56 a chael 1.6.

$$6\sqrt{2}-1.6\sqrt{2500}$$

Cyfrifo ail isradd 2500 a chael 50.

$$6\sqrt{2}-1.6\times 50$$

Lluosi 1.6 a 50 i gael 80.

$$6\sqrt{2}-80$$