The value of K for which 3x² + 2x + k = 0 has real roots.
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Answer:
3x²+2x+k=0
Here, a=3 , b=2 , c=k
For real roots,
b²-4ac = 0
(k)² - 4×3×k = 0
k² - 12k = 0
k(k-12) = 0
k = 0 × (k-12) or k-12 = 0 × k
k = 0 or k-12 = 0 i.e. k = 12
k = 0 can't happen ,so the value for k is 12.
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