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kow [346]
3 years ago
5

class="latex-formula">
Find the real/complex root of 8x^2+16+8​
Mathematics
2 answers:
MrMuchimi3 years ago
6 0
I’m pretty sure it is -1 but I might be wrong so, correct me if I am
Dima020 [189]3 years ago
4 0

Answer:

real root =-1 (repeated)

Step-by-step explanation:

8x²+16x+8

8(x²+2x+1)

8(x+1)²=0

x=-1,-1

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EXPERTS/ACE/GENIUSES
BlackZzzverrR [31]
Answer is first one

(2,3)(4,2)(3,1)
3 0
3 years ago
Plz help me how would you solve 4x + 2y = 18, 3x - 5y =20 by elemination
Natalka [10]

Answer: x = 5, y = -1

<u>Step-by-step explanation:</u>

Equation 1: 4x + 2y = 18

Equation 2: 3x - 5y = 20

In order to eliminate one of the variables , find the LCM of either x or y.

<em>I chose to eliminate y.</em>  The LCM of 2 & 5 is 10.

Multiply the entire equation so the coefficient of the variable equals the LCM.

Then add the equations and solve for the remaining variable.

5(4x + 2y = 18)       -->        20x + 10y = 90

2(3x - 5y = 20)      -->        <u>   6x  - 10y</u> = <u>40 </u>

                                           26x          = 130  

                                         <u> ÷26         </u>    <u>÷26 </u>

                                                x         =  5

Next, input x = 5 into either of the equations to solve for y.

Equation 1: 4x + 2y = 18

                 4(5) + 2y = 18

                  20  + 2y = 18

                <u> -20          </u>  <u>-20 </u>

                           2y = -2

                         <u> ÷2  </u>  <u> ÷2 </u>

                             y = -1

8 0
3 years ago
How Do I Multiply? Please Answer Quickly!!!​
Yuki888 [10]

Answer:

You just add.

3x3= 9

3+3+3=9

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
M2. Round to the nearest hundredth<br> The area of the figure below is<br> where necessary.
mariarad [96]

Answer:

The area of the shape is 693 m^2

Step-by-step explanation:

Here, we want to calculate the area of the given shape

Mathematically, what we have to do here is to multiply the base of the shape with the height

We have this as;

21 * 33 = 693 m^2

8 0
3 years ago
Find the angle θ between u = 〈6, –5〉 and v = 〈11, 8〉.
nexus9112 [7]

Step-by-step explanation:

this is the answer in the picture

3 0
3 years ago
Read 2 more answers
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