Answers

  • Brainly User
2015-05-16T21:00:32+05:30
√5x + 7 - √3x + 1 = √x+3 
√5x + 7 = √x+3 +√3x +1 
squaring  both sides 
(√5x+7)² = [(√x+3) + √(3x+1)]² 
5x + 7 = x+3 + 3x +1  + 2√(x+3)(√3x+1)
x+4 = 2√(x+3)(√3x+1)
again squaring both sides
(x+4)²=2(x+3)(3x+1)
x²+8x +16 = 2(3x² + x +9x +3 ) 
x²+8x +16 = 6x² +20x  +6 
5x²+12 x + -10 =0 
this is quadratic equation in x we have to find the value of x bro agr ham issme spliting se kr skte h to w8 or u can use quadratic formula for finding its roots
use this formula 
-b +- √b²-4ac/2a 
-12 /10+ (√144 + 200) \10
and other is 
12/10 -(√144 + 20010 \10   X= 1/5(-6+ √344) X=1/5(-6-√344)
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