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svetlana [45]
3 years ago
13

The expression x^2-9/x^2+6x+8 is equal to zero when x =

Mathematics
2 answers:
Mkey [24]3 years ago
8 0
The expression x^2-9/x^2+6x+8 is equal to zero
when x =-3,+3

katen-ka-za [31]3 years ago
7 0

Answer:

x=-3  and x=+3

Step-by-step explanation:

x^2-9/x^2+6x+8 is equal to zero

We need to solve for x

\frac{x^2-9}{x^2+6x+8} =0

Multiply the denominator on both sides

\frac{x^2-9}{x^2+6x+8} *x^2+6x+8 =0*x^2+6x+8

x^2 - 9 =0

add 9 on both sides

x^2 = 9

Take square root on both sides

x = +- 3

So , x=-3  and x=+3

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3 years ago
How to graph y = 2|x + 3| - 4
mr_godi [17]

The x-intercepts and the y-intercepts of the function is that determines the graph is:

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<h3>How do we graph the function y = f(x) of an absolute equation?</h3>

The function of an absolute equation can be graphed by determining the values of x-intercepts and the y-intercepts of the function.

From the given equation:

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To determine the y-intercepts, we need to set the values of x to zero, and vice versa for x-intercepts.

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8 0
2 years ago
3. Give the domain of y= √6-X using set builder notation.​
Molodets [167]

Answer:

{x | x ≤ 6}

Step-by-step explanation:

Given

y = √(6 - x)

Required

Determine the domain

We start by setting 6 - x to ≥ 0.

i.e.

6 - x ≥ 0

Add x to both sides

6 - x + x ≥ 0 + x

6 ≥ x

This can be rewritten as

x ≤ 6

Using set builder, the above van be represented as: {x | x ≤ 6}

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Step-by-step explanation:

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