Question

Rút gọn đơn thức :
a, -x⁴(yx)² (-x)² (-y)³
b, \(\dfrac{1}{2}\) ax³ (-xy) (-y²) a la hang so
c, \(\dfrac{-4}{5}y\left(\dfrac{3}{2}x^2y\right)^4\)
Giúp mình với nhé, cần gấp thanks

Answer 1

\(a,-x^4\left(yx\right)^2\left(-x\right)^2\left(-y\right)^3=x^8y^5\)

\(\dfrac{1}{2}ax^3\left(-xy\right)\left(-y\right)^2=\dfrac{1}{2}ax^4y^2\)

\(-\dfrac{4}{5}y\left(\dfrac{3}{2}x^2y\right)^4=-\dfrac{81}{20}x^8y^5\)

Answer 2

b, \(\dfrac{1}{2}ax^3\left(-xy\right)\left(-y\right)^2\)

\(=-\dfrac{a}{2}x^4y^3\)

c, \(-\dfrac{4}{5}y\left(\dfrac{3}{2}x^2y\right)^4\)

\(=-\dfrac{4}{5}y.\dfrac{81}{16}x^8y^4=-\dfrac{81}{20}x^8y^5\)

Chúc bạn học tốt!!!

Answer 3

Toshiro KiyoshiAkai HarumaHồng Phúc NguyễnNguyễn Huy TúT.Thùy Ninh