(4-i)(6+2i) eching

$$( 4 - i ) ( 6 + 2 i )$$

Baholash

$$26+2i$$

Yechim qadamlari

Binomlarni ko‘paytirgandek 4-i va 6+2i murakkab sonlarni ko‘paytiring.

$$4\times 6+4\times \left(2i\right)-i\times 6-2i^{2}$$

Ta’rifi bo‘yicha, i^{2} – bu -1.

$$4\times 6+4\times \left(2i\right)-i\times 6-2\left(-1\right)$$

Ko‘paytirishlarni bajaring.

$$24+8i-6i+2$$

Real va mavhum qismlarni birlashtiring.

$$24+2+\left(8-6\right)i$$

Qo‘shishlarni bajaring.

$$26+2i$$

Ashyoviy qism

$$26$$

Yechim qadamlari

Binomlarni ko‘paytirgandek 4-i va 6+2i murakkab sonlarni ko‘paytiring.

$$Re(4\times 6+4\times \left(2i\right)-i\times 6-2i^{2})$$

Ta’rifi bo‘yicha, i^{2} – bu -1.

$$Re(4\times 6+4\times \left(2i\right)-i\times 6-2\left(-1\right))$$

4\times 6+4\times \left(2i\right)-i\times 6-2\left(-1\right) ichidagi ko‘paytirishlarni bajaring.

$$Re(24+8i-6i+2)$$

24+8i-6i+2 ichida real va mavhum qismlarni birlashtiring.

$$Re(24+2+\left(8-6\right)i)$$

24+2+\left(8-6\right)i ichida qo‘shishlarni bajaring.

$$Re(26+2i)$$

26+2i ning real qismi – 26.

$$26$$