Mathematics: For the rational equation, , what is a valid value of x?

For the rational equation, , what is a valid value

Ответ:

rainbowcakes914

30.01.2022

Mathematics

-3 or -1 is a valid value for x

Step-by-step explanation:

We start by cross multiplying;

So the expression becomes;

x^2 + 5x + 6 = 1(x + 3)

x^2 + 5x + 6 = x + 3

x^2 + 5x -x + 6-3 = 0

x^2 + 4x + 3 = 0

x^2 + x + 3x + 3 = 0

x(x + 1) + 3(x + 1) = 0

(x + 3)(x + 1) = 0

x + 3 = 0 or x + 1 = 0

x = -3 or x = -1

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Ответ:

Student3220

28.04.2020

Mathematics

1)You multiply the number by 7.
3)0 to 9-add 9. 2 to 5-add 3. 4 to 1-subtract 3. 6 to -3- subtract 9. (Basically it's either add or subtract a number)
5)dunno, sry

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For the rational equation, $\frac{x^{2}+5x+6}{x+3}=1$ , what is a valid value of x?

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