1. \(2xy\left(-3x^2y^4x\right)=2\left(-3\right)\left(x\cdot x^2\cdot x\right)\left(y\cdot y^4\right)=-6x^4y^5\)
Bậc : 6
2. \(\left(-2x^2y^3\right)^2\left(\frac{1}{2}x^3y^2\right)=\left(-2\cdot\frac{1}{2}\right)\left(x^4\cdot x^3\right)\left(y^6\cdot y^2\right)=-1x^7y^8\)
Bậc : -1
Nhầm rồi , bậc câu 1 là 9 , bậc câu 2 là 15
\(2xy\left(-3x^2y^4x\right)=-6x^4y^5\)
Bậc : 9
\(\left(-2x^2y^3\right)^2\left(\frac{1}{2}x^3y^2\right)=\left(4x^4y^6\right)\left(\frac{1}{2}x^3y^2\right)=2x^7y^8\)
Bậc : 15
1) 2xy.(-3x^2y^4x)
= 2 . ( - 3) . ( x.x2. x ) . ( y. y4 )
= -6x4y5
Bậc là : 9
2) (-2x^2y^3)^2(1/2x^3y^2)
=( -2 . 1/2) ( x2 . x3 ) . ( y3 . y2)
= -1 x5y5
Bậc là :10