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3 years ago

Which of the binomials below is a factor of this trinomial ? 8x^2+ 2x-3

Mathematics

1 answer:

zhenek [66]3 years ago

7 0

Answer:

(2x-1) and (4x+3) are the factors of the trinomial.

Celebration! Hope this helps ^_^

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9/20

NISA [10]

For this case we must find the solution of the following quadratic equation:

$x ^ 2 + 5x + 7 = 0$

Where:

$a = 1\\b = 5\\c = 7$

Then, the solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values:

$x = \frac {-5 \pm \sqrt {5 ^ 2-4 (1) (7)}} {2 (1)}\\x = \frac {-5 \pm \sqrt {25-28}} {2}\\x = \frac {-5 \pm \sqrt {-3}} {2}$

By definition we have: $i ^ 2 = -1$

$x = \frac {-5 \pm \sqrt {3i ^ 2}} {2}\\x = \frac {-5 \pm i \sqrt {3}} {2}$

Thus, we have two complex roots.

Answer:

The equation has no real roots.

4 0

3 years ago

In one grade of 150 students, the ratio of boys to girls

juin [17]

You idiot you answered your own question!

7 0

3 years ago

Sadie is saving for a new car. Below is the total amount of money in her savings account on the last day of each month. Show all

ICE Princess25 [194]

The mean is 10,724.28.

Explanation:

The mean is all of the values divided by the number of values there are.

So what you have to do is add all of the numbers and divide it by the amount of numbers there are.

10,150+10,211+10,424+10,769+10,884+11,155+11,477= 75,070.

Since there are 7 numbers, divide 75,070/7 and you get your mean, which is 10,724.28 rounded.

5 0

2 years ago

Round to the nearest tenth. Asanji took a trip to Mexico. Upon leaving he decided to convert all of his Pesos back into dollars.

My name is Ann [436]

He would have around 15 dollars

4 0

3 years ago

Read 2 more answers

7. (5 + 4 – 2) х (-2) = ?<br> А. 14<br> В. -22<br> с. -14<br> D.22

Talja [164]

Step 1. (5+4-2)x(-2)
Step 2. (7)x(-2)
Step 3. -14

7 0

3 years ago