Question

please help help!!!!
it's a request to show with full explanation ​

Answer 1

Answer:

so nomber of the real solution is 1

b is correct choice.

Step-by-step explanation:

√(2x-4)=1+√(x+5)

or,{√(2x-4)}^2=1+x+5+2√(x+5)

or,2x-4=6+x+2√(x+5)

or,2√(x+5)=x-10

squareing both side we get

or,4x+20 = x^2-20x+100

or x^2 - 24x + 80 = 0

or x=(20 and 4)

the given equation in the question will be satisfied when x=20.