If one root of 3x^2 = 8x +(2k +1) is seven times
the other, then the value of k is
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3
Answer:
3x²-8x+2k+1 a=3, b=-8 ,c=2k+1
suppose the zeroes of the equation are α and β . by the given condition α=7β
as we know , α+β=-b/a
7β+β=-(-8)/3
8β=8/3
β=8/3×1/8=1/3
αβ=c/a
7β×β=2k+1/3
7×1/3×1/3=2k+1/3
7/9=2k+1/3
21/9=2k+1
21/9-1=2k
12/9=2k
4/3=2k
4/6=k
2/3=k
Answered by
2
Step-by-step explanation:
Here is the solution.Answer is:one root is1/3 and other is 7/3
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