answersLogoWhite

0

Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "times", "equals".

Assuming that the equation is:

-5x (9-4x) = 12

then:

20x2 - 45x -12 = 0

a x2 + bx + c = 0

Accordingly, a = 20, b = -45, c = -12

x = [ 45 +- (-45 x-45 - 4 x 20 x -12)1/2]/2 x 20 = [45 +- (54.635)]/40

x = [45 +54.635] / 40 or [45-54.635]/40

x = 2.491 0r x = - 0.241

User Avatar

Wiki User

10y ago

What else can I help you with?