Question
Download Solution PDFFind the values of b for which the quadratic equation 4x2 + bx + 1 = 0 has equal roots.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFconcept used:
For equal roots in quadratic equation, the discriminant should be zero.
Calculations:
D = 0
i.e., (b² - 4ac)
= b² - 4(4)
= b² - 16
And
b² - 16 = 0
So, b = -4 and 4
Hence, The Required value is - 4 and 4.
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