emilyhoang12121
Answered

Get the answers you need at Westonci.ca, where our expert community is dedicated to providing you with accurate information. Discover reliable solutions to your questions from a wide network of experts on our comprehensive Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

n^2+7n+15=5
show work please

Sagot :

iloveonedirection
n^2+7n+15=5
n^2 + 7n + 10 = 0
(n + 5)(n + 2) = 0
n + 5 = 0
n = -5
n + 2 = 0
n = -2

Answer: n = -5 and -2
Edmund
[tex]n^2+7n+15=5[/tex]

[tex]n^2+7n=-10[/tex]

[tex]n^2+7n+(\frac{7}{2})^2=-10+(\frac{7}{2})^2[/tex]

[tex]n^2+7n+\frac{49}{4}=-10+\frac{49}{4}[/tex]

[tex](n+\frac{7}{2})^2=\frac{9}{4}[/tex]

[tex]n+\frac{7}{2}=\sqrt{\frac{9}{4}}[/tex]

[tex]n=-\frac{7}{2}+\sqrt{\frac{9}{4}}[/tex]

[tex]n=-2[/tex]
[tex]n=-5[/tex]
Thank you for your visit. We are dedicated to helping you find the information you need, whenever you need it. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Get the answers you need at Westonci.ca. Stay informed by returning for our latest expert advice.