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mr_godi [17]
3 years ago
5

+find the discriminant and the number of real roots for this equation 9x^2+12x+14

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
8 0

Answer:

no real roots

Step-by-step explanation:

9x²+12x+14

recall that for a quadratic equation ax²+bx+c, the discriminant = b²- 4ac

In our case,

discriminant,

= b²- 4ac

= 12² - 4(9)(14)

= 144 - 504

= -360

because the discriminant is negative, there are no real roots.

Dimas [21]3 years ago
3 0

Answer:

the number of real roots for this equation 9x^2+12x+14 is :

0 (zero)

Step-by-step explanation:

Let Δ represent the discriminant

Δ = b² - 4ac = 12² - 4(9)(14) = -360

since Δ < 0 then it doesn’t have any real root.

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Answer:

  • See below

Step-by-step explanation:

<u>Use the graph to answer the following questions:</u>

When did she start using her phone?

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While she was using her phone, at what rate was Lin’s phone battery dying?

<u>From 100% to 40% between 2PM and 4 PM:</u>

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2 years ago
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Find a degree 4 polynomial having zeros -8,-1,4 and 5 and the coefficient of x^4 equal 1.
Keith_Richards [23]

Answer:

  x^4 -53x^2 +108x +160

Step-by-step explanation:

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Multiplying these out gives the polynomial in standard form.

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We note that these factors have a sum and difference with the same pair of values, x^2 and 9x. We can use the special form for the product of these to simplify our working out.

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4 0
3 years ago
6(x-2=4(x+3) what does x equal
Delicious77 [7]

Hey mate here is your answer.

➛ 6(x-2) = 4(x+3)

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Answer:

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Step-by-step explanation:

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