(3-5i)(-2-4i) eching

$$( 3 - 5 i ) ( - 2 - 4 i )$$

Baholash

$$-26-2i$$

Yechim qadamlari

Binomlarni ko‘paytirgandek 3-5i va -2-4i murakkab sonlarni ko‘paytiring.

$$3\left(-2\right)+3\times \left(-4i\right)-5i\left(-2\right)-5\left(-4\right)i^{2}$$

Ta’rifi bo‘yicha, i^{2} – bu -1.

$$3\left(-2\right)+3\times \left(-4i\right)-5i\left(-2\right)-5\left(-4\right)\left(-1\right)$$

Ko‘paytirishlarni bajaring.

$$-6-12i+10i-20$$

Real va mavhum qismlarni birlashtiring.

$$-6-20+\left(-12+10\right)i$$

Qo‘shishlarni bajaring.

$$-26-2i$$

Ashyoviy qism

$$-26$$

Yechim qadamlari

Binomlarni ko‘paytirgandek 3-5i va -2-4i murakkab sonlarni ko‘paytiring.

$$Re(3\left(-2\right)+3\times \left(-4i\right)-5i\left(-2\right)-5\left(-4\right)i^{2})$$

Ta’rifi bo‘yicha, i^{2} – bu -1.

$$Re(3\left(-2\right)+3\times \left(-4i\right)-5i\left(-2\right)-5\left(-4\right)\left(-1\right))$$

3\left(-2\right)+3\times \left(-4i\right)-5i\left(-2\right)-5\left(-4\right)\left(-1\right) ichidagi ko‘paytirishlarni bajaring.

$$Re(-6-12i+10i-20)$$

-6-12i+10i-20 ichida real va mavhum qismlarni birlashtiring.

$$Re(-6-20+\left(-12+10\right)i)$$

-6-20+\left(-12+10\right)i ichida qo‘shishlarni bajaring.

$$Re(-26-2i)$$

-26-2i ning real qismi – -26.

$$-26$$