Answered

Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Get quick and reliable solutions to your questions from a community of experienced experts on our platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

what two numbers multiply to 16 and add to 4?

Sagot :

sugarmate
xy=16               
 x + y = 4
-----------------

Solve those two equations for x and y.

The two numbers are:  2 - 2i sqr(3) and  2 + 2i sqr(3)


AL2006

You said that (xy) = 16, and (x+y) = 4 .

From the second equation you can get [ x = 4 - y ],
then substitude that for 'x' in the first equation, and
finally, rearrange the first equation to read
                                                                   x² - 4x + 16 = 0

Don't even try to factor that quadratic equation.  Go straight
to the quadratic formula, and the two solutions you find are ...

         x = 2 + i 2√3
and
         x = 2 - i 2√3 .

Those are the two number that do what you want.

There are no real numbers that can do it.


Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.