the roots of the quadratic equation 7x square+x-1,=0 are
a. real and equal
b. real and district
c. not real
d. none of these
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Answer:
7x²+x-1=0
D = b²-4ac
= 1² - 4×7× -1
= 1 + 28
= 29
(b) real and district
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