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sweet-ann [11.9K]
3 years ago
14

Need help please answer

Mathematics
2 answers:
forsale [732]3 years ago
5 0

Answer:

-x^2 + 4

Step-by-step explanation:

Multiply; (2 + x)(2 - x)

= 4 - 2x + 2x - x^2

Combine Like Terms; 4 (-2x + 2x) -x^2

= 4 - x^2

Put in Final Form;

= -x^2 + 4

If you need to solve for X;

Subtract 4

-4 = -x^2

Divide both sides by -1;

4 = x^2

Square root both sides;

2 = x

leonid [27]3 years ago
3 0

Answer:

the answer is 4-x^2

Step-by-step explanation:

-2x

and 2x cancel out

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Complete the equation of the line through (6,-6) and (8,8). Y =
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Answer:

7x-48

Step-by-step explanation:

we want our equation to look something like this

y=mx+b

let's start by solving for m (the slope) using the slope formula

\frac{y_2-y_1}{x_2-x_1}\\\\\frac{8-(-6)}{8-6}\\\\\frac{14}{2}=7

Which means, so far, our equation looks like this

y=7x+b

now we just need to solve for B

We can do this by plugging in a set of coordinates

-6=7*6+b

-6=42+b

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which means our equation is

7x-48

6 0
3 years ago
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Oksana_A [137]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
The real number −16 belongs to which sets of numbers?
WINSTONCH [101]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Lauren describes a parabola where the focus has a positive, nonzero x coordinate. Which parabola(s) could Lauren be describing?
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5 0
3 years ago
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Chin made an error in his chart showing the multiplication of the binomial by the trinomial. Which change can be made to correct
stealth61 [152]

Answer:

The expression 6x should be 6x^2.

Step-by-step explanation:

Given is the chart of multiplication of the binomial by the trinomial.

Let's check each element in the chart:-

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Hence. option B is correct, i.e. The expression 6x should be 6x^2.

7 0
4 years ago
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