Question

4x^-(x-3y)^ помагите пожалуста

Answer 1

4x^2-(x-3y)^2=

=(2x-(x-3y))*(2x+x-3y)=

=(2x-x+3y)*(3x-3y)=

=(x+3y)*3(x-y)

Или же можно упростить:

4x^2-(x-3y)^2=

=4x^2-(x^2-6xy+9y^2)=

=4x^2-x^2+6xy-9y^2=

=3x^2+6xy-9y^2.

Answer 2

4x²-(x-3y)²=(2x-(x-3y))(2x+x-3y)=(2x-x+3y)(3x-3y)=(x+3y)(x-y)*3