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Serggg [28]
3 years ago
14

The square of 9 less than a number is 3 less that the number?

Mathematics
2 answers:
Sladkaya [172]3 years ago
7 0
Nope..........it's not
vlabodo [156]3 years ago
6 0
N - 9^2 = n - 3?
n - 81 ≠ n - 3
There is no possible solution to this statement, so it is a false statement.
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garik1379 [7]

The complete question is

"Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real number solutions? (The related quadratic function will have two x-intercepts.) Check all that apply.

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0 = 4x^ 2 – 3x – 1

The quadratic equations that have real number solutions are; 4x^2 – 3x – 1, and 2x^2 – 7x – 9.

<h3>What is the formula for Discriminant?</h3>

The formula for finding the discriminant is

b^2 - 4ac

The solution contains the term \sqrt{b^2 - 4ac} which will be:

Real and distinct if the discriminant is positive

Real and equal if the discriminant is 0

Non-real and distinct roots if the discriminant is negative

For the quadratic equation 2x^2 - 7x - 9

b^2 - 4ac

= (-7) ^2 - 4( 2) ( -9)\\\\= 49 + 72 = 121

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For the quadratic equation 4x^ 2 - 3x- 1

b^2 - 4ac

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This equation will have two real number solutions.

Learn more on discriminant here:

brainly.com/question/1537997

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