Tolong dijawab ya.. dengan caranya ya. 1. (2x - 5y)^2 + (x-3y)^2 = 2. 2 (x + 6y)^2 - (x - 2y)^2 =

1.(2x-5y)^2 +(x-3y)^2
=4x^2-20xy+25y^2+(x^2-6xy+9y^2
=5x^2+34y^26xy
2.2(x+6y)^2-(x-2y)^2
=2(x^2+12xy+36y^2) - (x^2-4xy+4y^2)
=4x^2+24xy+72y^2 -x^2+4xy-4y^2
=3x^2+24xy+68y^2
Maaf kalok salah