Question

Use the quadratic formula to solve x2 – 5x + 3 = 0.

ОА.
51/37
X =
2
B.
*.51473
O c. x.-311
2
D. X-
25+ 117
2
RE

Answer 1

x is 4.30 and 0.697

Explanation:

Quadratic formular:

`x = \frac{ - b± \sqrt{ {b}^(2) - 4ac } }{2a} \\`

a » 1

b » -5

c » 3

`x = \frac{ - ( - 5)± \sqrt{ {( - 5)}^(2) - (4 * 1 * 3)} }{(2 * 1)} \\ \\ x = (5± √(13) )/(2)`

Therefore, values of x :

`x = (5 + √(13) )/(2) \: \: and \: \: (5 - √(13) )/(2) \\ \\ x = 4.30 \: \: and \: \: 0.697`