The answer is 36 i use foil and cheaked in calculator
Extraneous solutions, is answers that we get because of squaring both sides of the radical equation, but in reality, they are not going to be the solutions of the given equation.
(√(4x+41))²=(x+5)²
4x+41=x²+10x+25
x²+6x-16=0
(x-2)(x+8)=0
x1=2 , x2=-8,
And now we must to check them by substitution into initial equation
√(4x+41)=x+5
1) x=2, √(4*2+41)=2+5, √49=7, 7=7 true
2) x=-8, √(4*(-8)+41)=-8+5, √9 =-3 false,
so an extraneous solution x=-8
I think the answer is c
its 1155 but this is closest to the right answer
hope it helps
22/30 = 11/15
7/9 = 14/18
18/54 = 1/3
10/17 = 20/34
A proportion can be set up by using the general formula:
a/b = c/d
ad = bc