Question

5x^2-14x+9

what is the answer

Answer 1

Explanation:

5x^2-14x+9 = 0

What are the values of 'x' that satisfy this equation ?

Use quadratic formula with a = 5 b = -14 c = 9

to find x = 9/5 or 1

Answer 2

Explanation:

You would use the quadratic formula to find the answer for x

Quadratic Formula
(-b±√(b^2-4ac))/2a


in this case

a=5

b=-14

c=9

substitute in and solve

(--14±√((-14)^2-4(5)(9))/2(5)

(14±√(196-4(5)(9))/2(5)

(14±√(196-20(9))/10

(14±√(196-180)/10

(14±√(16)/10

14±4/10

x1 = 14+4 /10 = 18/10 = 9/5

x2 = 14-4/10 = 10/10 = 1