Question

Làm tính chia :

a) \(18x^2y^2z:6xyz\)

b) \(5a^3b:\left(-2a^2b\right)\)

c) \(27x^4y^2z:9x^4y\)

Answer 1

a)\(18x^2y^2z\div6xyz\)

\(=3xy\)

b)\(5a^3b\div\left(-2a^2b\right)\)

\(=\dfrac{-5}{2}a\)

c)\(27x^4y^2z\div9x^4y\)

\(=3yz\)

Answer 2

a. 12xy

b. 7a

c. 18yz

Answer 3

a) \(18x^2y^2z:6xyz=\left(18:6\right)\left(x^2:x\right)\left(y^2:y\right)\left(z:z\right)=2xy\)

b) \(5a^3b:\left(-2a^2b\right)=5:\left(-2\right)\left(a^3:a^2\right)\left(b:b\right)=\dfrac{-5}{2}a\)

c) \(27x^4y^2z:9x^4y=27:9\left(x^4:x^4\right)\left(y^2:y\right)z=3yz\)