3 years ago

Find all numbers for which the rational expression is not defined! 5/x+8

Mathematics

1 answer:

Cloud [144]3 years ago

5 0

Answer:

So I'm assuming we need the denominator to be 0. The only number that will satisfy this is -8.

x = -8.

Step-by-step explanation:

The reason is we need the denominator to be 0. The only way is -8 + 8 which is 0.

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Which of the following is the correct factorization of the polynomial below?<br> x3 + 14x2 + 49x

Naddika [18.5K]

For this case we must factor the following polynomial:

$x ^ 3 + 14x ^ 2 + 49x\\$

We can take common factor x:

$x(x ^ 2+ 14x + 49)$

To factor the expression within the parenthesis, we must find two numbers that when multiplied give 49 and when added together, 14 are obtained. These are: 7 and 7.

$7*7=49,7+7=14$