-3xy^2-(-4x*7y^2)+[8x^2y^3:(2xy)]= eching

$$- 3 x y ^ { 2 } - ( - 4 x \cdot 7 y ^ { 2 } ) + [ 8 x ^ { 2 } y ^ { 3 } : ( 2 x y ) ] =$$

Baholash

$$29xy^{2}$$

Yechim qadamlari

-28 hosil qilish uchun -4 va 7 ni ko'paytirish.

$$-3xy^{2}-\left(-28xy^{2}\right)+\frac{8x^{2}y^{3}}{2xy}$$

-28xy^{2} ning teskarisi 28xy^{2} ga teng.

$$-3xy^{2}+28xy^{2}+\frac{8x^{2}y^{3}}{2xy}$$

25xy^{2} ni olish uchun -3xy^{2} va 28xy^{2} ni birlashtirish.

$$25xy^{2}+\frac{8x^{2}y^{3}}{2xy}$$

Surat va maxrajdagi ikkala 2xy ni qisqartiring.

$$25xy^{2}+4xy^{2}$$

29xy^{2} ni olish uchun 25xy^{2} va 4xy^{2} ni birlashtirish.

$$29xy^{2}$$

x ga nisbatan hosilani topish

$$29y^{2}$$