The qudractic equation is .
Apply subtraction property of equality: If a = b then a c = b
c.
(Subtract 1 from each side)
(Apply additive inverse property:
)
The equation compare to quadratic equation, then a = 5, b = 7 and c =
1.
Quadratic formula: .
(Substitute x = v, a = 5, b =
7 and c =
1)
(Evaluate power:
)
(Simplify)
(Add: 49 + 20= 69)
Using the calculator to evaluate square root.
\
Separate the solutions .
(Simplify)
The solution set is .