(-3xy²)³+(-2x²)(-xy²) 化简(-5a^6)^2+(-2a^3)^3*a^3不好意思,写错了。是(-3xy²)³+(-2x²y^4)(-xy²)(-3xy²)³+(-3x²y^4)(-xy²)

问题描述:

(-3xy²)³+(-2x²)(-xy²) 化简
(-5a^6)^2+(-2a^3)^3*a^3
不好意思,写错了。是
(-3xy²)³+(-2x²y^4)(-xy²)
(-3xy²)³+(-3x²y^4)(-xy²)

  1. (-3xy²)³+(-2x²)(-xy²) = -27x^3y^6+2x^3y^2=x^3y^2(2-27y^4)

  2. (-3xy²)³+(-2x²y^4)(-xy²)=-27x^3y^6+2x^3y^6=-25x^3y^6

  3. (-3xy²)³+(-3x²y^4)(-xy²)=-27x^3y^6+3x^3y^6=-24x^3y^6

  4. (-5a^6)^2+(-2a^3)^3*a^3=25a^12-8a^12=17a^12

(-3xy²)³+(-2x²)(-xy²) =-x^3y^2[(-3y^2)^2-2)=-x^3y^2(9y^4-2)
(-5a^6)^2+(-2a^3)^3*a^3=25a^12-8a^12=17a^12

(-3xy²)³+(-2x²)(-xy²)
=-27x³y6次方+2x³y²
(-5a^6)^2+(-2a^3)^3*a^3
=25a^12-8a^9*a^3
=25a^12-8a^12
=17a^12