Find the value(s) of a for which ax2
- 6x - 2=0 has equal roots
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The condition for a quadratic equation ax ^2
+bx+c=0 to have equal roots, is
b ^2 −4ac=0
For the given equation kx ² −6x−2=0
b ² −4ac=(−6) ² −4k(−2)=0
36+8k=0
8k=−36
k=−36/8
=−9/2
+bx+c=0 to have equal roots, is
b ^2 −4ac=0
For the given equation kx ² −6x−2=0
b ² −4ac=(−6) ² −4k(−2)=0
36+8k=0
8k=−36
k=−36/8
=−9/2
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