How do you factor #125-8w^3#?
1 Answer
Nov 17, 2017
Explanation:
#"this is a "color(blue)"difference of cubes"#
#"and factorises in general as follows"#
#•color(white)(x)a^3-b^3=(a-b)(a^2+ab+b^2)#
#"here "(5)^3=125" and "(2w)^3=8w^3#
#rArra=5" and "b=2w#
#rArr125-8w^3#
