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Temka [501]
3 years ago
7

Solve the equation using the quadratic formula 3x^2 =2(2x+1)

Mathematics
2 answers:
shtirl [24]3 years ago
5 0
3x² = 2(2x+1)


Expand the brackets

3x² = 4x + 2


Rearrange

3x² - 4x - 2 = 0


Quadratic formula is

(-b ± √(b² - 4ac)) / 2a


Where

a = 3
b = -4
c = -2


Therefore, putting these values in to the quadratic formula:

x = 15.487
or
x = -3.487

Round the answers how you will.
Nadusha1986 [10]3 years ago
3 0
Step 1: Make equation equal to Zero

3x^2 = 4x + 2


3x^2 - 4x - 2 


Step 2: use equation

a= 3 b = -4 c= -2 

after plugging in answer should be

(2 + or - sqrt 10) / 3 


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X+9=24 how to solve for x
rodikova [14]
You can easily do just one step to get the value of x.

x + 9 =24            subtract 9 from both sides

x + 9 - 9 = 24 - 9

Simplify:

x = 15


I hope I helped you.



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Dmitrij [34]
Vas happenin!!


The last option is correct… She flipped the Y values and the X values it would be 4-12÷9-7

Hope this helps

-Zayn Malik
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2 years ago
Evaluate if a = 6, b = 2, c = 9, & d = 3
bixtya [17]

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12

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7 0
3 years ago
Solve the equation for x. the square root of the quantity x minus 8 end quantity plus 2 equals 7 x = 1 x = 13 x = 17 x = 33
Masteriza [31]

The solution of the equation (√x-8) + 2 = 7 is x = 13.

According to the given question.

We have an equation

\sqrt{x - 8} + 2 = 7x

Since, we solve the above equation for x .

Therefore,

\sqrt{x - 8} + 2 = 7

⇒ (√x - 8) = 7 - 2

⇒ (√x - 8) = 5

Squarring both the sides.

⇒ x - 8 = 5

⇒ x = 5 + 8

⇒ x = 13

Hence, the solution of the equation (√x-8) + 2 = 7 is x = 13.

Find out more information about equation here:

brainly.com/question/15707224

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1 year ago
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