Réitigh {left(0.2sqrt{2}-0.06right)}^2

$${ \left(0.2 \sqrt{ 2 } -0.06 \right) }^{ 2 }$$

Luacháil

$$-\frac{3\sqrt{2}}{125}+0.0836\approx 0.049658875$$

Céimeanna Réitigh

Úsáid an teoirim dhéthéarmach \left(a-b\right)^{2}=a^{2}-2ab+b^{2} chun \left(0.2\sqrt{2}-0.06\right)^{2} a leathnú.

$$0.04\left(\sqrt{2}\right)^{2}-0.024\sqrt{2}+0.0036$$

Is é 2 uimhir chearnach \sqrt{2}.

$$0.04\times 2-0.024\sqrt{2}+0.0036$$

Méadaigh 0.04 agus 2 chun 0.08 a fháil.

$$0.08-0.024\sqrt{2}+0.0036$$

Suimigh 0.08 agus 0.0036 chun 0.0836 a fháil.

$$0.0836-0.024\sqrt{2}$$

Fairsingigh

$$-\frac{3 \sqrt{2}}{125} + 0.0836 = 0.049658875$$

Céimeanna Réitigh

Úsáid an teoirim dhéthéarmach \left(a-b\right)^{2}=a^{2}-2ab+b^{2} chun \left(0.2\sqrt{2}-0.06\right)^{2} a leathnú.

$$0.04\left(\sqrt{2}\right)^{2}-0.024\sqrt{2}+0.0036$$

Is é 2 uimhir chearnach \sqrt{2}.

$$0.04\times 2-0.024\sqrt{2}+0.0036$$

Méadaigh 0.04 agus 2 chun 0.08 a fháil.

$$0.08-0.024\sqrt{2}+0.0036$$

Suimigh 0.08 agus 0.0036 chun 0.0836 a fháil.

$$0.0836-0.024\sqrt{2}$$