Whats one way to solve fraction additional problems

Mathematics

2 answers:

liubo4ka [24]3 years ago

8 0

The denominator always had to be the same

meriva3 years ago

6 0

The denominator always has to be the same
Example: 1/3 plus 2/4
we know that the LCM (least common multiple) is 12 so you do 1 times 4 and 3 times for because what you do to the bottom, you have to do to the top and for 2/4 we multiply 2 times 3 and 4 times 3 that will leave us with 4/12 plus 6/12 and then you get 10/12 then you reduce that to 5/6. I hope this helps if it doesn't go to Khan Academy its a website and its on Youtube. Good Luck!

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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

4 years ago

Need help on polynomials

kkurt [141]

Follow these steps and you should get your answer its not the same questions but it should help
The answer to the problem is as follows:

These two polynomials are 5x^2 + 3x + 5 and 3x^2 +2x + 2:

Subtracting the second expression from the first:

5x^2 + 3x + 5
- (3x^2 +2x + 2)
____________
2x2 + x + 3 <------------- The difference

7 0

4 years ago

Elis [28]

Answer:

Step-by-step explanation:

36 divided by 4 is 9

5 0

3 years ago

Read 2 more answers

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Kruka [31]

Answer: