Question

Medal & fan.
Determine the solution set of (3x + 1)^2 - 100 = 0.

Answer 1

3x + 1 = 100 right?

Answer 2

Hey you might want to check your previous question. I think you were under the wrong impression what the answers were.
well first add 100 on both sides
(3x+1)^2=100
then take square root of both sides
you nee to take square root of 10
and you should have a second equation
3x+1=10 or 3x+1=-10

Answer 3

(x+2)^2=36
gives the equations
x+2=6 or x+2=-6
subtracting 2 on both sides gives
x=6-2 or x=-6-2
which gives us
x=4 or x=-8

Answer 4

8 is definitely not a solution because (8+2)^2=36 is totally false

Answer 5

so its not (4, -8) @freckles

Answer 6

i just said it is x=4 or x=-8

Answer 7

I was disagreeing with ever gave you 8 as an answer

Answer 8

oh myb i see now

Answer 9

as (8+2)^2=36 is false
(-8+2)^2=36 is true
(4+2)^2=36 is also true

Answer 10

anyways
can you solve the two linear equations above

Answer 11

3x+1=10 or 3x+1=-10