Question

Anybody knows what is the value of x in √3x = 20+x??
I will mark as BRAINLIEST to the first correct answer

Answer 1

Hi mate

Here is ur answer

√3x=20 + x

square on both sides

3x = (20+x)^2

3x=400+x^2 +40x

x^2 + 37x + 400 = 0

.....(or)....

√3x = 20 + x

square on both side

3x^2 = (20+x)^2

3x^2=400+x^2+40x

2x^2 - 40x - 400 = 0

x = -b + or - √ b^2 - 4ac

_______________

2a

= -(-40) +or - √ (-40)^2 - 4(2)(-400)

______________________________

2(2)

= 40 +or - √ 1600 + 3200

______________________

4

= 40 + or - √ 4800

_____________

4

= 40 + or - 40 √3

_____________

4

X = 40+40√3

__________

4

=40( 1 + √3 )

__________

4

X = 10( 1+ √3)

X = 10 ( 1-√3)

i hope this will help u....

Mark as brainliest...