Question 102240
1){{{2x^2-28}}}
factor out the 2;
{{{2(x^2-14)}}}
now factor;
2(x+7)(x-7)
2){{{a^2+25-10a}}}
First put it in standard form;
{{{a^2-10a+25}}}
now factor;
(a-5)(a-5)
3) {{{2x^2-11x+12}}}
factor;
(2x-3)(x-4)
4){{{x^3+24x^2+144x}}}
factor out the x;
{{{x(x^2+24x+144)}}}
x(x+12)(x+12)
:)