Question

AJUTOR VA ROOOOG desfaceti parantezele si reduceti termenii asemenea
a) 3(x+y-z)+2(x-y+z)-4(-x+y+z)
b) 2(x-y)+3(y-z)-4(z-x)
c) x(x+y)-y(x-y)-2(x patrat +y patrat)
d) 4x(1-y)-3y(1-x)+y(x+2)
e)√2(2x-y)-2(√2x+y)+y(1+√2)
f) √6(√2x-√3y)+√3(1-2x)-√2(2-3y)
g) 1/3x(6x-3y)-1/2(4xpatrat-6y)-1/5y(10-5x)
h) -(2√3x-3√2y+4)+(√12x-√18y+6)

Answer 1

a) 3x+3y+3z+2x-2y+2z+4x-4y-4z=
9x-3y+z
b)2x-2y+3y-3z-4z+4x=
6x+y-7z
c)x^2+xy-xy+y^2-2x^2-2y^2=
se simplifica xy cu -xy
-x^2-y^2
d)4x-4xy-3y+3xy+xy+2y=
4x-xy-y+xy=
se simplifica -xy cu xy
4x-y