Question

Sqrt x+1=x+1

Answer 1

square both sides

Answer 2

So x+1=x^2+x+1?

Answer 3

sqrt(x+1)=x+1 ?

Answer 4

square both sides ->
x+1 = x^2 + 2x + 1

Answer 5

can you solve it now ?

Answer 6

coolsector is correct

Answer 7

I got one answer but I need two. I need x=0 and x=-1

Answer 8

those are your two answers

Answer 9

so x+1 =x^2 + 2x +1
arranging gives you
x^2 +2x-x+1-1 = 0
x^2 +x = 0

Answer 10

now.. you get those two numbers 0,-1
you see why ?

Answer 11

I got the 0 but I'm confused on how to get the -1

Answer 12

it the x equals values

Answer 13

x^2 + x = 0
->
x(x+1) = 0

Answer 14

now it's either x =0
or
x+1 = 0
which means x = -1

Answer 15

I got it. Thanks!

Answer 16

yw :)