Question

find the value of discriminant.
${x}^{2} + 7x - 1 = 0$
​

Answer 1

${x}^{2} + 7x - 1 = 0$

Answer:

Apply formula

b²-4ac

a= 1, b= 7, c= -1

7² - 4(1) (-1)

49 - 4 - 1

49 - 5

44 answer

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Answer 2

$x^2 + 7x - 1 = 0$

a = 1, b = 7, c = -1

discriminant, d = $b^2 - 4ac$

$d = (7)^2 - 4(1)(-1)$ = $49 - (-4)$ = 49 + 4 = 53

the discriminant of the equation is 53

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