Question

разложите на многочлены
64х^2-9y^2
64x^3-27y^3

Answer 1

64x^2-9y^2=(8x)^2-(3y)^2=(8x-3y)(8x+3y);
64x^3-27y^3=(4x)^3-(3y)^3=(4x-3y)((4x)^2+4x*3y+(3y)^2)=(4x-3y)(16x^2+12xy+9y^2);