Quadratic formula

Question

21.7_7x-93x^2

 

I can not figure out the formula

Answer 1

I assume you meant to write

21.7 - 7x - 93x².

In standard form,

-93x² - 7x + 21.7 = 0

a = -93

b = -7

c = 21.7

Plug these numbers into the quadratic formula to find the zeros:

x = [-b ± √(b² - 4ac)] / (2a)