Question

factorise 8x³+√27y³ ​

Answer 1

Answer:

Step-by-step explanation:

Given 8x^3 + 27y^3

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

We know that a^3 + b^3 = (a + b)(a^2 - ab + b^2)

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

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

Hope this helps!

Answer 2

√27y³ = 3y³

Hence 8x³+3y³ is a question.

= 8x³+3y³

= 8x³+3(8x²×3y)+3(8x×3y²)+3y³

= 512x³+576x²y+216xy²+27y³

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