Find the values of k so that the quadratic equation x^2-4kx+k=0 has equal roots.
Answers
Answered by
0
Answer:
Step-by-step explanation:
b^2-4ac=0
Whereas
B=-4k
And c= k
Now solve it by putting in these formula u will get
Answered by
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Hi Mate!!
For equal roots Descrimnant(D) must be equal to 0
=>. D = √ ( 16k² - 4k )
=>. √( 16k² - 4k ) = 0
Squaring both sides
=>. 16k² - 4k = 0
=>. k ( 16k - 4 ) = 0
=>. k = 0. or. k = 1 / 4
For equal roots Descrimnant(D) must be equal to 0
=>. D = √ ( 16k² - 4k )
=>. √( 16k² - 4k ) = 0
Squaring both sides
=>. 16k² - 4k = 0
=>. k ( 16k - 4 ) = 0
=>. k = 0. or. k = 1 / 4
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