Question

Solve the following using the quadratic formula. Round to the nearest tenth, if necessary.
x2 + 5x - 2 = 0

Answer 1

x is .372281 or -5.37228

Answer 2

just plug it into the quadratic formula

Answer 3

x= -b plus or minus the square root of b^2-4ac divided by 2a

Answer 4

x2 + 5x - 2 = 0

is

1x2 + 5x - 2 = 0
^ ^ ^
a b c

Answer 5

x=-5+(25-8)/2 or -5-(25-8)/2
x=-5+17 or -5-17
x=12 or -22
since -22 is negative answer is 12

Answer 6

http://www.mathwarehouse.com/quadratic/quadratic-formula-calculator.php