Question

vă rog ajutațimă urgent!!!​

Answer 1

Răspuns:

a)(x+2)²=16=>x+2=√16=>x+2=4=>X=2

b)...x-3=16=>x=16+3=19

c)...x-8=1.2=>x=1.2+8=9.2

d)...=>x-2=9=>x=9+2=11

e)...=>2x-1=3=>2x=4=>x=2

f)...=>2x-3=7=>2x=10=>X=5

g)...=>3x-1=8=>3x=9=>x=3

h)...=>2x+3=13=>2x=10=>x=5