3 years ago

What is the formula for the discriminant?

1 answer:

4 0

Answer:

In the case of a quadratic equation ax2 + bx + c = 0, the discriminant is b2 − 4ac; for a cubic equation x3 + ax2 + bx + c = 0, the discriminant is a2b2 + 18abc − 4b3 − 4a3c − 27c2.

Step-by-step explanation:

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If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?

Llana [10]

F(x) = -x² + 4
g(x) = 6x

(g - f)(3) = 6(3) - (-(3)² + 4)
(g - f)(3) = 18 - (-9 + 4)
(g - f)(3) = 18 - (-5)
(g - f)(3) = 18 + 5
(g - f)(3) = 23
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5 0

3 years ago

Determine whether the function has a maximum or minimum value. <br> f(×)= x^2+9

PtichkaEL [24]

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