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2 years ago

2. How many solutions does the equation 3x-2x + 4 = 2 +x+2 have?

Mathematics

1 answer:

Allushta [10]2 years ago

6 0

Answer:

I think it is D. Because x=x and there's infinite possibilities.

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Solve the following equations for x : <br> g = c - x

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2 years ago

For what value of x is (2x^2+8x)/(x+4)(x^2-9) undefined?

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Answer:

The value at x =3 is undefined for the given expression

Step-by-step explanation:

Given expression is $\frac{2x^2+8x}{(x+4)(x^2-9)}$

To find for what value of x is undefined in the given expression :

$\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{2x(x+4)}{(x+4)(x^2-9)}$

$=\frac{2x}{x^2-9}$

$\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{2x}{x^2-9}$

If we put x=3 in the above expression we get

$\frac{2x}{x^2-9)}=\frac{2(3)}{3^2-9}$

$=\frac{6}{9-9}$

$=\frac{6}{0}$

Therefore $\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{6}{0}$

The value at x =3 is undefined for the given expression

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