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skelet666 [1.2K]
3 years ago
7

Apply distributive property. 2x(2x+1) - 7(2x+1)

Mathematics
1 answer:
Schach [20]3 years ago
7 0
2x^2+2x-14x-7

Answer: 2x^2-12x-7
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PLS PLS PLS HELP i dont get it
OleMash [197]

we are looking for an equation perpendicular to y = -2x + 5

The form: y = mx + b

Where m is the pending; and b is the product of X1 for m, add the Y1

The pending of a line that is perpendicular to other line is reprical to the pending ot this other line, and with a different sign.

So, the pending of this first line is -2, the reprical is -1/2. We change the sing and we have 1/2

The second line does have a pending of 1/2 (0.5).

So, this second line pass for the point (0,0), so we have the equation:

y - Y1 = m(x - X1)

Where Y1 and X1 are the points y and x where pass the line.

If the line pass for the points 0 and 0, so:

y - 0 = m(x - 0)

And the pending we know is 0.5, so

y - 0 = 0.5(x - 0)

We pass to the form slop-intercept:

y = 0.5x - (0.5*0) + 0

The same that:

<h2>y = 0.5x</h2>

Cause 0+0=0

5 0
3 years ago
Use the grouping method to factor the polynomial below.<br><br> x^3+4x^2-3x-12
Rina8888 [55]

Answer:

(x+4) (x^2-3)

Step-by-step explanation:

Hope this helps

6 0
3 years ago
Read 2 more answers
Rectangle ABCD is graphed in the coordinate plane. the following are the vertices of the rectangle: A(2,-6), B(5,-6), C(5,-2), a
Klio2033 [76]
The perimeter of rectangle ABCD equals 14
4 0
3 years ago
Which inequality is graphed? <br>1. 2&lt;x<br>2. 2&gt;x<br>3. 2&lt;_x<br>4. 2&gt;_x​
marissa [1.9K]

Answer: 3

Step-by-step explanation:

4 0
3 years ago
What is the value of x in the equation: 0.7x - 1.4 = -3.5?<br><br> A. -7<br> B. -3<br> C. 3<br> D. 7
SashulF [63]

Answer:

B). -3

add the -1.4 to-3.5 then divide the solution

6 0
3 years ago
Read 2 more answers
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