Question

Solve for x?
√ (5x-1) = √ (4x+9)

Answer 1

square both sides (just like before) .

Answer 2

do i have to do it separately? since there are 2.

Answer 3

Well, if you had

√(x+1) = √(2x-2)

after squaring both sides, the square roots would just disappear, and you would get
x+1=2x-2

then..
1=x-2
x=3

So, what happens if you square both sides, in YOUR problem ?

Answer 4

I have no idea. I'm confused because there are 2.

Answer 5

raise each side to the second power....

lets start with the left side √ (5x-1) = √ (5x-1) ² (raised to 2nd power) = 5x-1.
now continue with the right side √ (4x+9) = √ (4x+9) ² (raised to 2nd power) = 4x+9.

So, after raising BOTH SIDES to the SECOND POWER, you would get

5x-1=4x+9

See?
Can you take it from here ?

Answer 6

do you just subtract?

Answer 7

After squaring both sides? Yes...

1) subtract 4x from both sides
2) add 1 to both sides.

The answer is ?

Answer 8

5-4 is 1 and 4-4 is 0. do you put those together to get 10?

Answer 9

I don't really get what you said by 4-4 =0, but yeah, the ans. is 10 .

Answer 10

well how do you understand it then?

Answer 11

I don't want to do something wrong and mess up on the others

Answer 12

5x-1=4x+9
-4x -4x

x-1=9
+1 +1

x=10