Question

sqrt 2a-1=5

Answer 1

does it look like this? \[\huge \sqrt{2a - 1} = 5\]

Answer 2

yes :)

Answer 3

square both sides first

Answer 4

to get rid of the square root on the left side

Answer 5

isn't it jst 2 and 5? im not good at sqrt...

Answer 6

what do you mean just 2 and 5

Answer 7

I have no clue on how to do this

Answer 8

let me show you an example. maybe you'll get an idea from there

\[\huge \sqrt{5x +4} = 2\]
\[\huge \implies (\sqrt{5x + 4})^2 = (2)^2\]
\[\huge \implies 5x + 4 = 4\]
\[\huge \implies 5x = 4 - 4\]
\[\huge \implies 5x = 0\]
\[\huge \implies x = 0\]

does that give you any ideas?

Answer 9

how did you move the 5 over?

Answer 10

it says that its the wrong answer

Answer 11

move the 5 over? i just divided 5x = 0 both sides by 5... 0 divided by 5 is still 0 so x = 0

and that is just an example not the answer to your question...just so we're clear

Answer 12

oh haha

Answer 13

got it ....

Answer 14

thank you

Answer 15

^_^ better understand/clear the concept /....

Answer 16

it said 3 isn't right...

Answer 17

im still confused..

Answer 18

the 5 should of came 25 right?