Question

1.Aduceti la forma cea mai simpla:
a.3(x+y)-2x-3y
b.-3(a-b)+2(a+b)-4(b-a)
c.a(a+2b)-a(a-2b)
d.2x(3x-1) -3x(2x+1)
e.2x(3xla2-2x+3)-3x(2xla2+3x+2)
f.x(xla2+x+1)-(xla2+x+2)-x(xla2+1)
g.3(2xla2+3x-5)-4x(x+2)+5(xla2+2)+22
h.radical3(2radical3+6x)-radical108(x-radical3)+3radical3(2radical3x-radical3)
i.3 la2(-4ala3+2ala2-1)-2a(-4ala4+ala3+a-1)-(2ala4-5a)

2.Calculati
a.(12xla5-16xla3+4xla2)+3xla3
b.(x+5)la7:(x+5)la3-{(x+5)la2]totul la2
c.(xy+7x-5y+35)-(x-5)(y+7)

Answer 1

a) 3x+3y-2x-3x=3y-2x, b) -3a+3b+2a+2b-4b+4a=3a+b, c) a²+2ab-a²+2ab=4ab, d) 6x²-2x-6x²-3x=-5x,  e) 6x³-4x²+6x-6x³-9x²-6x=-13x²,f) x³+x²+x-(x²+x+2)-x³-x=x²-x²-x-2=-x-2...............