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a fost răspuns

Calculati: a)2x+6+3x-8=
b)(x+4)-(x+4)=
c)-(4x+7)+(4x+7)=
d) x la a 2+x+1-(x la a 2-x+1)=
e)3a-a-2a=
f)5( a la a 2+3a-2)-4a(a+1)=
g)2x(x-3)-x(-x+2)-x(x+3)=
h)x+x-2x la a 2
i)4|x-1|+3|x-1|-6|x-1|=

Răspuns :

HawkEyed
a) = 5x - 2 
a) = 0 
c) = 0 
d) = x²+x+1 - x²-x - 1 = 0
e) = 0
f) = 5a²+15a - 10 - 4a² - 4 = a² + 15a - 14 
g) = 2x² - 6x + x² -2x - x² - 3x = 2x² - 11x 
h) = 2x - 2x² 
i) = Ix-1I

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