Issolvi 0.01(x-y)^2-9

$$0.01 ( x - y ) ^ { 2 } - 9$$

Evalwa

$$\frac{\left(x-y\right)^{2}}{100}-9$$

Passi tas-Soluzzjonijiet

Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(x-y\right)^{2}.

$$0.01\left(x^{2}-2xy+y^{2}\right)-9$$

Uża l-propjetà distributtiva biex timmultiplika 0.01 b'x^{2}-2xy+y^{2}.

$$0.01x^{2}-0.02xy+0.01y^{2}-9$$

Espandi

$$-\frac{xy}{50}+\frac{x^{2}}{100}+\frac{y^{2}}{100}-9$$

Passi tas-Soluzzjonijiet

Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(x-y\right)^{2}.

$$0.01\left(x^{2}-2xy+y^{2}\right)-9$$

Uża l-propjetà distributtiva biex timmultiplika 0.01 b'x^{2}-2xy+y^{2}.

$$0.01x^{2}-0.02xy+0.01y^{2}-9$$