Question

factorise 9 x cube + 64 y cube

Answer 1

⭐⭐Hello friend..Ur answer is here⤵⤵

⚫ 27x^3+64y^3


➡(3x)^3+(4y)^3

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

➡(3x)^3+(4y)^3=(3x+4y)(9x^2-12xy+16y^2)

I HOPE IT IS HELPFUL TO YOU ☺

Answer 2

$9 {x}^{3} + 64 {y}^{3}$
$(\sqrt{9} x) ^{3} + (4y) ^{3}$
$(\sqrt{9}x + 4y)(9 {x}^{2} - 4 \sqrt{9} xy + 16 {y}^{2} )$
$(3x + 4y)(9 {x}^{2} - 12xy + 16{y}^{2} )$
$i \: hope \: this \: help \: u$