Question

Factorise 8xcube + 125

Answer 1

Answer:

$<marquee >!! Answer!! </marquee>$

$\boxed{Formula\:=\:a^3+b^3}$

$\boxed{a^3+b^3=(a+b)(a^2-ab+b^2}$

$\red{=>(8x)^3+(5)^3}$

$\red{=>(8x+5)[(8x^2+5^2-(8x.5)] }$

$\green{=>(8x+5)(64x^2+25-40x)}$

$\green{=>512x^3+200x-320x^2+140x^2+125-200x}$

$\orange{=>512x^3-180x^2+125}$

$<marquee >Hope it helps you</marquee >$

Answer 2

Answer:

8x^3 +125

512+125

637 is the answer