Question

radical 3x+7=x-1
evaluate

Answer 1

3x+7=(x-1)^2
3x+7=x^2-2x+1

Answer 2

now what do we do?

Answer 3

5x+7=x2+1

Answer 4

x^2-5x-6=0

Answer 5

do i factor?

Answer 6

(x-6)(x+1)

Answer 7

x=6,-1
Is it extraneous?

Answer 8

then we should try answers .

Answer 9

-1 is not an answer because the answer of square root is positive or zero.

Answer 10

6 is the answer and it is not extraneous correct?

Answer 11

yes.(18+7)^(1/2)=6-1
radical25=5