Question

5x square -15x+11=0 solved by quadratic formula method
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Answer 1

Answer:

1.72 or 1.28

Step-by-step explanation:

x = -b +- .√b² - 4ac / 2a

x = 15 +- √15² -4 ×5×11 /2×5

x= 15 +- √225 -220 /10

x= 15 +- √5 /10

x = 15 +- 2.236 /10

x = 15 + 2.236 /10 or 15 - 2.236 /10

x = 1.72 or 1.28