Question

x la a 2 = 625
x la a 2 =256
2xx la a 2=800
-7x xla a 2 + 1 = 76

Answer 1

Răspuns:

SALUT!

1.x=25

x=-25

2.x=16

x=-16

3.x²=400

x=20

x=-20

4.-7x²=76-1

-7x²=75

7x²=-75 =∅;

Sper sa fie corect. ....