Question

find the product (2n-3y)(4x^2+6xy+9y^2)+(5x+3y)(25x^2-15xy+9y^2)​

Answer 1

Answer:

 18ny2 + 12nyx + 8nx2 - 18y2x - 12yx2 + 125x3

Step-by-step explanation:

Answer 2

Considering question as

[(2x-3y)×(4x^2+6xy+9y^2)]+

[(5x+3y)×(25x^2-15xy+9y^2)]

Multiplying for simplification

=[(8x^3+12x^2y+18xy^2)+(-12x^2y-18xy^2-27y^3)]+

[(125x^3-75x^2y+45xy^2)+(75x^2y-45xy2+27y^3)]

Opening brackets and Re arranging the similar terms

=(8x^3+125x^3)+(-27y^3+27y^3)+(12x^2y-12x^2y)+(18xy^2-18xy^2)+(75x^2y-75x^2y)+(45xy^2-45xy^2)

=8x^3+125x^3+0+0+0+0+0

=133 x^3