At Westonci.ca, we provide clear, reliable answers to all your questions. Join our vibrant community and get the solutions you need. Join our platform to connect with experts ready to provide accurate answers to your questions in various fields. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

K^2+8k-9=0 can you help me solve with showing work

Sagot :

Using the PSN method:

P = -9
S = 8
So N = 9,-1

Using 9 and -1 in the original equation gives:

[tex]k^2+9k-k-9=0 \\k(k+9)-1(k+9)=0 \\(k-1)(k+9) \\\\k=1,-9[/tex]
k² + 8k - 9 = 0
k = -8 +/- √(8² - 4(10)(-9))
                   2(1)
k = -8 +/- √(64 + 360)
                   2
k = -8 +/- √(424)
               2
k = -8 +/- 20.59126028
                     2
k = -8 + 20.59126028    k = -8 - 20.59126028
                    2                                    2
k = 12.5912608             k = -20.5912608
              2                                     2
k = 6.2956304                k = -10.2956304
We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.