Question

Ajutor pls.

a) (x + 1) la puterea a doua
b) (4 + x) la puterea a doua
c) (5 + 3a) la puterea a doua
d) (2x + 5y) la puterea a doua
e) (x la puterea a doua + 1) la puterea a doua
f) (3t + t la puterea a doua ) la puterea a doua

Answer 1

Răspuns:

a)x+1²=>x=1

b)x+4²=>x=16

c)5+3a=5²+3a=>25+3=38=>a=28

d)2x+5y=2+5=7²=>x,y=49

e)x²+1²=>1

f)3t²+t²=3²=9+t²=>81