Issolvi z^2-25*10^-12+16*10^-12

$${ z }^{ 2 } -25 \times { 10 }^{ -12 } +16 \times { 10 }^{ -12 }$$

Evalwa

$$z^{2}-\frac{9}{1000000000000}$$

Passi tas-Soluzzjonijiet

Ikkalkula 10 bil-power ta' -12 u tikseb \frac{1}{1000000000000}.

$$z^{2}-25\times \frac{1}{1000000000000}+16\times 10^{-12}$$

Immultiplika 25 u \frac{1}{1000000000000} biex tikseb \frac{1}{40000000000}.

$$z^{2}-\frac{1}{40000000000}+16\times 10^{-12}$$

Ikkalkula 10 bil-power ta' -12 u tikseb \frac{1}{1000000000000}.

$$z^{2}-\frac{1}{40000000000}+16\times \frac{1}{1000000000000}$$

Immultiplika 16 u \frac{1}{1000000000000} biex tikseb \frac{1}{62500000000}.

$$z^{2}-\frac{1}{40000000000}+\frac{1}{62500000000}$$

Żid -\frac{1}{40000000000} u \frac{1}{62500000000} biex tikseb -\frac{9}{1000000000000}.

$$z^{2}-\frac{9}{1000000000000}$$

Fattur

$$\frac{\left(1000000z-3\right)\left(1000000z+3\right)}{1000000000000}$$