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Vesna [10]
3 years ago
15

Solve 2x(x + 4) = x - 3

Mathematics
2 answers:
Vsevolod [243]3 years ago
7 0

Answer:

-1/2

Step-by-step explanation:

Don't forget to rate if this helped

hodyreva [135]3 years ago
5 0
2x ² + 8x = x - 3
2x ² + 8x - x + 3 = 0
2x ² + 7x + 3 = 0
2x ² + 6x + x + 3 = 0
2x(x+3) + (x+3) = 0
(x+3)(2x+1) = 0
x= -3 ; -1/2
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Look at the graph shown:
NNADVOKAT [17]
We are going to base the answer off of the y=mx+b form where m represents slope and b represents the y-intercept.

First, we know that b must be -1 because the line hits the y-axis when y is -1
So this leaves us with either the first or second choice

Then we choose two points to find the slope. I am using (0,-1) and (1,2). If you count the boxes, the y-value increases by 3 as the x-value increases by 1. So the slope is 3/1 or 3.

So then we know the answer is y=3x-1

Hope this helps 
4 0
3 years ago
Find the 52nd term for the following sequence. 16,6,-4,-14....
nikklg [1K]
I think it’s D, sorry if I’m wrong.
8 0
3 years ago
<img src="https://tex.z-dn.net/?f=3x%2B9%2B2x%3Dx-2x-3" id="TexFormula1" title="3x+9+2x=x-2x-3" alt="3x+9+2x=x-2x-3" align="absm
V125BC [204]

Answer:

Step-by-step explanation:

Equation

3x + 9 + 2x = x - 2x - 3              

Solution

Combine all the like terms.

3x+2x+9 =  x - 2x - 3

5x + 9 = -x - 3                            Add x to both sides of the equation

5x+x +9 = -x+x -3                      Combine

6x + 9 = - 3                                Subtract 9 from both sides of the equation

6x+9-9 = - 3-9                           Combine

6x = -12                                      Divide both sides by 6

6x/6 = -12/6

x = - 2

Answer x = - 2

3 0
2 years ago
Read 2 more answers
A number b<br> is at most 9
Travka [436]

b ≤ 9   (b is less than or equal to 9)

Hope this helps! ;)

8 0
3 years ago
HELP PLEASEEEEEEEEEEEEEEEE
Nady [450]

Answer:

1\frac{3}{4}

Step-by-step explanation:

To find the answer, we divide the number of apples by the number of bags. This means we do 7 ÷ 4

7 ÷ 4 = 1.75

1.75 in fraction form is 1\frac{3}{4}

3 0
3 years ago
Read 2 more answers
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