Question

Solve equation by using the quadratic formula.
25 x squared minus 169 = 0

Answer 1

x = 13/5 or –13/5

Explanation:

25x² – 169 = 0

Using quadratic formula:

Let a=25, b=0 and c=–169

Recall,

–b ± (√b²–4ac)/2a

–0 ± (√0²–4(25)(–169))/2(25)

–0 ± (√0 + 16900)/50

(–0 ± 130)/50

x = (– 0 + 130)/50 or (–0–130)/50

x = 13/5 or –13/5