Answered

Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Get detailed and precise answers to your questions from a dedicated community of experts on our Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

Which two numbers add up to 11 and multiply to -60?

Sagot :

duckmalone
None do. If you are doing factoring it is probably prime.. Hope this helps
You have to make a simultaneous equation.
For the first case, the equation is x+y= 11 or y=11-x and for the second is x*y=-60
When plot the y from the first in the second equation, giving us x(11-x)=-60 or -x^2+ 11x=-60 or even x^2-11x-60=0
And using complete the square, (x-5.5)^2 - 30.25-60=0 , simplifying into (x-5.5)^2 = 90.25 and x-5,5=sqrt(90.25)
x-5.5=9.5 and x=15 or x-5.5=-9.5 and x = -4.

Back to the equation x*y=-60 and making y the subject, being y=-60/x
we replace the two values of x, giving us y=-60/15=-4 or y=-60/-4= 15. Hence the possible answers are 15 and -4 or -4 and 15.
Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.