Question

\[\sqrt{2x -3} - \sqrt{x+7} = 4\]

Answer 1

square both sides.

Answer 2

what u get ?

Answer 3

Take one sqrt term to right that would be easy

Answer 4

i doubt that... just the same thing....squaring twice will be necessary

Answer 5

wait 1 min plz

Answer 6

i dont understand the 3rd setp

Answer 7

its squared both sides in third step

Answer 8

\((x-26)^2=8^2\sqrt{x+7}^2\)

Answer 9

for left side use
\((x-a)^2=x^2-2ax+a^2\)

Answer 10

okk

Answer 11

any more doubts ?

Answer 12

yes i got it:)

Answer 13

nop

Answer 14

good...

Answer 15

i have doubt one question

Answer 16

which >

Answer 17

this one

Answer 18

the question is:
\[x=2y\]
\[\sqrt{x+y} - \sqrt{x-y} = 2\]

Answer 19

which step ?

Answer 20

All setps

Answer 21

first you replace x by 2y
then square both sides.

Answer 22

what u get ?

Answer 23

isn't it x=2y+1 ??

Answer 24

is system equation