You would is this case use the perfect square rule. So your would squareroot 9r^2 and 25 to get 3r+5 then you would square this equation to get (3r+5)^2
Set the two equal to each other and solve for x
-2x+1 = -2x²+1
-2x= -2x²
x=x²
x²-x=0
x(x-1) =0, so x is either 0 or 1
two solutions, namely (0,1) and (1,1)
Divide I from both sides then subtract r from both sides, too so in the end:
R= (E-r)/I
Answer:
11 socks
Step-by-step explanation:
116 - 2 pants = 116 - 2 (35) = 116 - 70 = 46
46 / socks = 46/4 = 11.5
