Question

the roots of the equation 7x2+x-1=0, find the value of discriminate (d) ​

Answer 1

Answer:

$7 {x}^{2} + x - 1 = 0 \\ d = {b}^{2} - 4ac \\ here \: a \: is \: 7 \: \: b \: is \: 1 \: \: c \: is \: - 1 \\ d = {1}^{2} - 4 \times 7 \times - 1 \\ d = 1 + 28 \\ d = 29$

The value of discriminate is 29

Step-by-step explanation:

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