expand (2x-3y)^3 step by step plz
Answers
Answered by
0
Answer:
8x^3-36x^2y+54xy^2-27y^3
Step-by-step explanation:
(2x-3y)^3
(x-y)^3=x^3-3x^2y+3xy^2-y^3
(2x-3y)^3=(2x)^3-3(2x)^2(3y)+3(2x)(3y)^2-(3y)^3
=8x^3-3(4x^2)(3y)+3(2x)(9y^2)-27y^3
=8x^3-36x^2y+54xy^2-27y^3
Similar questions