Answered

Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

The sum of a number and its square is 72. Find the number.

Sagot :

Colleen1414
The sum  of a number, n, and its square n^2 is 72. In equation form, this is n + n^2 = 72. Try making this into a polynomial equaling 0.
n + n^2 =72       subtract 72
n^2 + 1n -72 = 0        Now factor this polynomial
(n-8) (n+9)  = 0 Solutions to this problem are 8 and -9
Plug in for n to check.
 8 + 64 = 72        8 is correct
 -9 + 81 =  72      -9  is also correct!!
We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.