Question 969762
{{{(2x-3y)^2=(2x-3y)(2x-3y)}}}
Use the distributive property,
{{{(2x-3y)^2=(2x-3y)(2x)-(2x-3y)(3y)}}}
{{{(2x-3y)^2=(4x^2-6xy)-(6xy+9y^2)}}}
{{{(2x-3y)^2=4x^2-12xy+9y^2}}}