Question 184036
{{{(-5x)^2+5x^2}}} Start with the given expression.



{{{25x^2+5x^2}}} Square {{{-5x}}} to get {{{(-5x)^2=(-5x)(-5x)=(-5)(-5)(x*x)=25x^2}}}




{{{30x^2}}} Combine like terms.



So {{{(-5x)^2+5x^2=30x^2}}}