Question

Rezolvați in Z ecuatiile:

a) x^2+1=10
b)|x-2|=7
c) |x+2|+|x^2-4|=0
d)(x-1)(x-2)=12
e) (x-1)(y+4)=10
f) (y+2)(x-7)=13​

Answer 1

Răspuns:

a) x*2 = 9

x = \/9 *\/ = radical*

x = 3

b) x - 2 = 7

x = 9

x - 2 = - 7

x = - 5