Question

Determine the nature of roots of the quadratic equation x2+7x-1=0

Options
1)Real and equal
2)Not real
3)Real and unequal
4) non of these above

Answer 1

Answer:

real and unequal

Step-by-step explanation:

let's find out the value of

${b}^{2} - 4ac$

${b}^{2} - 4ac = {7}^{2} - 4 \times 2 \times (- 1)$

$= 49 + 8 = 57$

Since the value is positive and greater than zero, the roots are real and unequal