Question

Please solve it friends
$\sqrt{2x + 9} + x = 13$
​

Answer 1

Answer:

ROOT(2x +9) +x =13

root(2x+9)=13-x

squring both sides

2x+9 = (13-x)²

2x+9=169+x²-26x

bringing terms at right side

0=x²-28x+160

now middle term splitting

and you will get 2 values for x.

sorry i cant do middle term spliting cause i dont have paper pen rn.

hope it helps

i am solving it with discriminat methid

x²-28x+160

D=b²-4ac

=784-640

=144

x= -b +root(D)/ , -b -root(D)/

2a 2a

x= +28+12/ ' +28-12/

2(1) 2(1)

x= 40/2. , 16/2

x= 20,8

answers