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saveliy_v [14]
3 years ago
5

(WILL MARK BRAINLIEST) Solve x^2-4x-12=0. SHOW YOUR WORK! show and DESCRIBE EACH STEP!

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
8 0
<span>x^2 - 4x - 12 = 0
factors
(x - 6)(x + 2) = 0
</span>Set (x - 6) and (x + 2)<span> equal to </span><span>0</span><span> and solve for </span><span>xx</span>.<span>
x -  6 = 0; x = 6
x + 2 = 0; x = -2

answer
x = -2 or x = 6</span>
Reika [66]3 years ago
5 0
Since <span><span>−12</span><span>-12</span></span> does not contain the variable to solve for, move it to the right side of the equation by adding <span>12</span> to both sides.<span><span><span>x2</span>−4x=12</span></span>Move <span>12</span> to the left side of the equation by subtracting it from both sides.<span><span><span>x2</span>−4x−12=0</span></span>Factor <span><span><span>x2</span>−4x−12</span><span><span>x2</span>-4x-12</span></span> using the AC method.<span><span><span>(x−6)</span><span>(x+2)</span>=0</span></span>Set <span><span>x−6</span></span> equal to <span>0</span> and solve for <span>x</span>.<span><span>x=6</span></span>Set <span><span>x+2</span></span> equal to <span>0</span> and solve for <span>x</span>.<span><span>x=−2</span></span>The solution is the result of <span><span>x−6=0</span></span> and <span><span>x+2=0</span></span><span>x=6,−<span>2</span></span>
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Pls help due today or ill fail
Nezavi [6.7K]

Answer: Ok so I may be wrong but I got 84ft

Step-by-step explanation: The bottom looks like a rectangle so it would be 4 times 12. 4 times 12 equals 48. since the height is 4 it would be 10-4 which equals 6. 6 Times 12 divided by two equals 36. 36 plus 48 is 84.

7 0
3 years ago
Help me please I’m not sure about this
frutty [35]

easy, 36/6=6

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7 0
3 years ago
Read 2 more answers
Use the distributive property to find the missing number.<br> __× (9 + 8) = (15 × 9) + (15 × 8)
BARSIC [14]

Answer:

The missing number is 15

5 0
3 years ago
Solve each equation by graphing the related function. If the equation has no real-number solution, write no solution. 1/4x^2-4=0
quester [9]
The answer is B.

I hope this helps. :)
3 0
3 years ago
The graph of a system of equations shows the solution to be at (-6, 2). Which two of the following equations could
blondinia [14]

Answer:

Step-by-step explanation:

The graph shows the solution (-6,2)

i.e at x= -6 y=2

Analysis of each of the answers, since we can't write the equation of a straight line with only that information i.e the single point

Then,

Option 1

1. 2x - 3y = -6

x= -6 y=2

Then let insert x=-6 and y =2

2(-6)-3(2)

-12-6

-18.

Since -18 ≠ -6, then this is not the equation of the line and doesn't make up the system

Option 2

2. 4x - y = 26

Inserting x=-6 and y=2

4(-6)-(2)

-24-2

-26

Since -26 ≠ 26, then this is not the equation of the line and doesn't make up the system

Option 3

3. 3x + 2y = -14

Inserting x=-6 and y=2

3(-6)+2(2)

-18+4

-14

Since -14 ≠ -14 then this is the equation of the line and it make up the system.

Option 4

x-y = -2

Inserting x=-6 and y=2

(-6)-(2)

-6-2

-8

Since -8≠ -2, then this is not the equation of the line and doesn't make up the system

Option 5

5. x+y=-4

Inserting x=-6 and y=2

(-6)+(2)

-6+2

-4

Since -4 ≠ -4, then this is the equation of the line and it makes up the system.

Then, there are two option that make up the system

3. 3x + 2y = -14

And

5. x+y=-4

4 0
3 years ago
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