Question

which is expression is equivalent to

Answer 1

if \[\sqrt{x-a}=b, x>a \]

Answer 2

which expression is equivalent to x?

\[b^{2}-a \]

Answer 3

\[b-a\]

Answer 4

b+a

Answer 5

or b^2+a

Answer 6

\[\sqrt{x-a}=b\]=>\[x-a=b^2\]=>\[x=b^2+a\]

Answer 7

When solving with radicals, square both sides because \[(\sqrt{x})^2=x\]

Answer 8

It will just get rid of it :)!!

Answer 9

so b^2+ a is the answer?

Answer 10

yes

Answer 11

how did you know x=> ?

Answer 12

Did you understand the first step? that x-a = b^2 ?

Answer 13

no i dont