please answer this question.
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Answer:
a) (3x-y)(9x^2 + y^2 + 3y)
Answered by
1
Answer:
Rewrite it in the form a3 −b3, where
a=3x and b=y
2 Use Difference of Cubes: a3 −b 3
=(a−b)(a2 +ab+b 2 )
(3x-y)(3x) 2+(3x)(y)+y 2)
3 Use Multiplication Distributive Property: (xy)a =xa ya
.
(3x-y)(32x2 +3xy+y 2)
4 Simplify 3 to 9.
(3x−y)(9x2 +3xy+y 2)
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