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Andru [333]
3 years ago
11

Multiply out the brackets and simplify x(x3+2)

Mathematics
1 answer:
DENIUS [597]3 years ago
6 0
<span><span>x4</span>+2x is the answer </span><span>Simplify the </span>expression<span>.</span>
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I don't understand can someone help please.
Roman55 [17]

Answer:  The point where the two graphed lines cross is the solution to the system of equations.  (1, -1)

Step-by-step explanation:

The second equation is already in slope-intercept form y = x - 2

the slope is +1 (invisible coefficient of x) and the y-intercept is -2

y = mx +b    

"m" is the slope (the coefficient of x) Positive slopes go up from left to right

"b" is the y-intercept, where the graphed line crosses the x-axis

Rewrite the first equation in slope-intercept form.

6x + y = 5   subtract 6x from both sides

<em>-6x</em> + 6x +y = -<em>6x</em> + 5 .( left side 6x + 6x =0 so "cancel")

y = -6x + 5

Then you know the slope and the intercepts

b = 5  so start with a point at +5 in the y-axis

m = -6 so from there go down 6 and over to the right 1 square and plot another point. Draw a straight line through the two points.

The point where the two graphed lines cross is the solution to the system of equations.

Your graph should look like the screenshot below.

4 0
4 years ago
The symmetry of a hyperbola with a center at (h, k) only occurs at y = k. True or False
Vikki [24]
A hyperbola with a center at (0, 0) can be defined  as x²/a² − y²/b² = ±1.<span> 
</span>The statement "<span>The symmetry of a hyperbola with a center at (h, k) only occurs at y = k" </span>is false, because a hyperbola have many different orientations.
It doesn't have to be symmetric about the lines y = k or x = h.
6 0
3 years ago
What is the domain of f(x) = 3x – 2?
Elis [28]

Answer: las option.

Step-by-step explanation:

The equation of the line in slope-intercept form is:

y=mx+b

Where m is the slope of the line and b is the y-intercept.

Then function given in the problem has the form:

f(x)=3x-2

Where:

m=3

b=-2

Therefore, it is a linear function.

By definition, the domain of the  linear functions that are not bounded, is all the Real numbers.

Therefore, the answer is:

<em> {x | x is a real number}</em>

3 0
3 years ago
Read 2 more answers
What expression is equivalent to twice B plus the sum of 2 and b?
ikadub [295]

Answer: . 2 + 3b

Step-by-step explanation: Twice b is 2b. Sum of 2 and b is 2 + b. Add them all together and combine like terms. You get your answer.

5 0
3 years ago
How do you convert 7.25% into dollars and cents?
Viefleur [7K]

Answer:

SEVEN DOLLARS AND TWENTY-FIVE CENTS. ($7.25)

3 0
3 years ago
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