Question 507711
Factor:
10) {{{144x^2-900y^2}}} Notice that this is a difference of squares:
{{{(12x)^2-(30y)^2}}} and this can be factored thus:
{{{A^2-B^2 = (A-B)(A+B)}}} so...
{{{144x^2-900y^2 = highlight((12x-30y)(12x+30y))}}}
11) {{{54x^3-72x^2y+24xy^2}}} First factor 6x.
{{{6x(9x^2-12xy+4y^2)}}} Now factor the trinomial.
{{{highlight(6x(3x-2y)(3x-2y))}}}