Question

what is n if √(3n+12)=√(n+8)?

Answer 1

3n+12=n+8
2n=-4
n=-2

Answer 2

square both sides
3n+12=n+8
3n-n=8-12
2n=-4
n=-2
let's check if both the root contains positive number
3n+12=6
n+8=6
so n=-2

Answer 3

what is n if √n=√(2n-6)?

Answer 4

n=2n-6
n=6

Answer 5

what is x if √(11-x)=√(x-7)?

Answer 6

11-x=x-7
18=2x
x=9

Answer 7

what is x if . √(72-x)=√(x/5)?

Answer 8

72-x=x/5
360-5x=x
360=6x
x=60

Answer 9

what is x if √(x+3)=√(1-x)?

Answer 10

x=-1

Answer 11

how?

Answer 12

the same way.
1st hav to square both sides.
then u get
x+3=1-x
2x=-2
x=-1

Answer 13

what is k if√(2k+40)=√(-16-2k)

Answer 14

what is x √(x+8)=√(3x+8)?