what is the value of k for equation 9 X square + 8kx + 8 where X have equal roots
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it is easy but big explaination so sorry
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For equal roots
Discriminat must be equal to zero
D= b² - 4ac must be zero
Here b = 8k, a = 9 and c = 8
So (8k)² - 4x9x8=0
64k² = 288
K² = 9/2
K= 3/√2
K= 2.1
Hope this helps :)
Discriminat must be equal to zero
D= b² - 4ac must be zero
Here b = 8k, a = 9 and c = 8
So (8k)² - 4x9x8=0
64k² = 288
K² = 9/2
K= 3/√2
K= 2.1
Hope this helps :)
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