Question

1 efectuati
a) (5x-11x)-(9x-4x+11x)=
b) (-3x²y-7x²y+9x²y)+(-4x²y+3x²y)=
c) -(5xy²-17xy²-8xy²)+(2xy²-3xy²-5xy²)-(-4xy²+6xy²)=
e) (1,8x²-0,5x²)+(1,2x²-2,7x²)-(96x² -0,3x²)=

Answer 1

a) 5x-11x-9x+4x-11x= -22x
b) -x^2y-x^2y= - 2x^2*y
c) - (-20x*y^2)+ (-6x*y^2)-2x*y^2=(20-6-2)*x*y^2=12x*y^2
e) 1,3x^2+ (-1,5x^2)-9,57x^2= - 9,77x^2