Question

Find the discriminate, number of roots and solve the quadratic equation using the quadratic formula -my answers are pribably wrong

Answer 1

Answers:

• discriminant = d
• number of roots = e
• solutions = g

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Explanation:

Let's compute the discriminant. Here we have a = 1, b = 1, c = -2

d = b^2 - 4ac

d = 1^2 - 4(1)(-2)

d = 9

The fact that d > 0 tells us we have two different real number solutions.

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We can use the quadratic formula to solve, or we can factor. I'll use the factor method.

x^2 + x - 2 = 0

(x - 1)(x + 2) = 0

x-1 = 0 or x+2 = 0

x = 1 or x = -2

The two solutions are -2 and 1

Answer 2

Answer:

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