Question

Rezolvati in multimea numerelor naturale ecuatiile a) (x - 1)(x+ 3) egal 0 b) (3x - 6)(4x- 3) egal 0 c) (x + 2)(x + 3) egal 12 d) x la puterea 2 - x egal 6

Answer 1

(x - 1)(x+ 3)=0(-1+3)x = 0
2x=0
x=2/0
x=0
 
(3x - 6)(4x- 3)=0(3-6 * 4-3)x =0
(-3 * 1)x =0
-3x=0
x=-3/0
x=0

(x + 2)(x + 3)=12
(2*3)x=12
6x=12
x=2

x la putearea 2=6
= 6x a puterea 2