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Bezzdna [24]
3 years ago
15

Can you show me the steps to factor out 8x^3 - 27y^3?

Mathematics
1 answer:
Travka [436]3 years ago
7 0

(2x-3y)(4x^2+6xy+9y^2) is the factored form of 8x^3-27y^3

<em><u>Solution:</u></em>

We have to factor the given expression

8x^3-27y^3

We can use the algebraic identity to factor the given expression

a^3-b^3=(a-b)(a^2+ab+b^2)

Lets make the given expression in form of a^3-b^3

8x^3-27y^3=(2)^3(x)^3-(3)^3(y)^3

8x^3-27y^3=(2x)^3-(3y)^3

Now apply the algebraic property in above expression

Here, a = 2x and b = 3y

Therefore,

(2x)^3-(3y)^3=(2x-3y)((2x)^2+(2x)(3y)+(3y)^2)

(2x)^3-(3y)^3=(2x-3y)(4x^2+6xy+9y^2)

Thus the given expression is factored out

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