`A=6xy^3 . (3x^3y - 2x^2y^2 + 3xy^3)`
`A = 6xy^3 . 3x^3y - 6xy^3 . 2x^2y^2 + 6xy^3 . 3xy^3`
`=18x^4 y^4 -12x^3 y^5 + 18x^2 y^6`
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`B = (x^2 + xy+y^2). (-2xy) + xy.(x^2 - xy+y^2)`
`B=-2x^2y^2 -2xy^3 -1x^3y -x^2y^2 +xy^3 +x^3y`
`B=-3x^2y^2 -xy^3-x^3y`
\(A=18x^4y^4-12x^3y^5+18x^2y^6\)
\(B=-2x^3y-2x^2y^2-2xy^3+x^3y-x^2y^2+xy^3\)
\(B=\left(-2x^3y+x^3y\right)-\left(2x^2y^2+x^2y^2\right)-\left(2xy^3-xy^3\right)\)
\(B=-x^3y-3x^2y^2-xy^3\)
A = 6xy³ . (3x³y - 2x²y² + 3xy³)
= 6xy³ . 3x³y + 6xy³ . (-2x²y²) + 6xy³ . 3xy³
= 18x⁴y⁴ - 12x³y⁵ + 18x²y⁶
B = (x² + xy + y²) . (-2xy) + xy . (x² - xy + y²)
= x².(-2xy) + xy.(-2xy) + y².(-2xy) + xy.x² + xy.(-xy) + xy.y²
= -2x³y - 2x²y² - 2xy³ + x³y - x²y² + xy³
= -x³y - 3x²y² - xy³
A=6xy3.(3x3y−2x2y2+3xy3)A=6xy3.(3x3y-2x2y2+3xy3)
A= 6xy3.3x3y− 6xy3.2x2y2+ 6xy3.3xy3A= 6xy3.3x3y- 6xy3.2x2y2+ 6xy3.3xy3
=18x4y4−12x3y5+18x2y6=18x4y4-12x3y5+18x2y6
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B=(x2+xy+y2).(−2xy)+xy.(x2−xy+y2)B=(x2+xy+y2).(-2xy)+xy.(x2-xy+y2)
B=−2x2y2−2xy3−1x3y−x2y2+xy3+x3yB=-2x2y2-2xy3-1x3y-x2y2+xy3+x3y
B=−3x2y2−xy3−x3y
