Question

Expand (x+3)^3
Expand (2-y)^3
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Answer 1

Answer:

Here we can use (x-y)^3 and (x+y)^3... formulae....

Answer 2

Answer:

1) x^3+9x^2+27x+27

2) -y^3 -6y^2-12y+8

Step-by-step explanation:

(a+b)^3=a^3+b^3+3ab(a+b)

(a-b)^3= a^3-b^3-3ab(a-b)

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