Question

ecuatia x^2 = a are solutia -3
ecuatia -2x^2 = a are solutia 1
ecuatia 5+x^2= 7a are solutia 4
ecuatia x^2 = a are o singura solutie
ecuatia 3-x^2= 5a - 6x^2 are solutia -3​
dau coroana!!

Answer 1

Răspuns:

Explicație pas cu pas:

1) (-3)^2 = a,   a = 9

2) -2*1 =  a,  a = -2

3) 5 +4^2 = 7a, 21 = 7a,  a = 3

4) 0^2 = a,  a = 0

5) 3 -(-3)^2 = 5a - 6(-3)^2

3 - 9 = 5a -54 ,  48 = 5a,   a = 48/5