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Nostrana [21]
3 years ago
15

Dicriminant of x² – 49 = 0

Mathematics
1 answer:
Mama L [17]3 years ago
6 0

Answer:

196

Step-by-step explanation:

The discriminant (Δ) is given by:

\Delta = b^2-4ac

Where the polynomial is in the form:

ax^2+bx+c=0

In this problem, a = 1, b = 0, and c = -49. Thus, plugging it into the formula:

\Delta = 0^2-4(1)(-49) = -(-196) = 196

Thus, the discriminant of x² – 49 = 0 is 196.

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F(x)=4x^2 and g(x)=-8x^2+4x-4, find (f+g)(x) and (f+g)(-3)
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Answer:

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Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – 4x = 5
saw5 [17]

The solution to x^2 - 4x = 5 is x = -1 or 5

<h3>How to solve the equation?</h3>

The equation is given as:

x^2 - 4x = 5

Take the coefficient of x

k = -4

Divide by 2

k/2 = -2

Square both sides

(k/2)^2 = 4

Add this value to the sides of the equation

x^2 - 4x + 4= 5 + 4

Express as a difference of two squares

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Evaluate

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Hence, the solution to x^2 - 4x = 5 is x = -1 or 5

Read more about quadratic equations at:

brainly.com/question/10449635

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