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enot [183]
3 years ago
8

Pls guys help me with this i will give u more points!

Mathematics
1 answer:
gtnhenbr [62]3 years ago
5 0

3x - 4y =  - 6 \\  - 2x + y = 1

<em>The Ordered pair of solution will be (x,y)=(2,3)</em>

\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}

<h3>Steps below⤵️</h3>

  • Solve the second equation for y
  • Substitute the given value of y into the first equation
  • Solve the first equation for x
  • Substitute the given value of x into the second equation
  • Solve the equation for y
  • The possible solution of the system is the ordered pair (x,y)
  • And we are done solving!!~

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Multiply (2x + 8)^2.
pantera1 [17]
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Best explained and correct answer gets brainliest!
mezya [45]
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3 0
3 years ago
How do i solve x^2+7x=3x
valina [46]
To solve, you must make one side of the equation equal to zero. We can do this by subtracting 3x on both sides of the equation.

<span>x^2 + 7x = 3x
</span>       - 3x    -3x

x^2 + 4x = 0.

Then we substitute the equation into the quadratic equation.

\frac{-b+- \sqrt{b^2-4ac} }{2a}

Where a = 1 b = 4 and c = 0

\frac{-(4)+- \sqrt{(4)^2-4(1)(0)} }{2(1)}

We first solve whats inside the square root.

\frac{-(4)+- \sqrt{16} }{2(1)}

\sqrt{16} = 4

Now we solve for -4 and 4.

-4 - 4 = -8
-4+4=0

Then divide both answer by 2

\frac{-8}{2} = -4
The division of any by zero is zero

So the answer are x = -4 and x = 0
7 0
4 years ago
Read 2 more answers
Write the following proportion:<br> 8 is to 64 as 2 is to X
Andrews [41]
1 way
\frac{8}{64}  =  \frac{2}{x}  \\  \\ &#10; \frac{8:4}{64:4}  =  \frac{2}{x}  \\  \\ &#10; \frac{2}{16}  =  \frac{2}{x}    ⇔  x = 16
......................................................
2.way
\frac{8}{64}  =  \frac{2}{x}
<span>We multiply the cross
</span>
8x = 2 * 64&#10;8x = 128&#10;x = 16
3 0
3 years ago
Read 2 more answers
What is the discriminant of 3x2 + 6x = 2?
Softa [21]

Answer:

Discriminant is 60

Step-by-step explanation:

the discriminant of 3x^2 + 6x = 2

To find discriminant , first we write the equation in the form of

ax^2+bx+c=0

3x^2 + 6x = 2

Subtract 2 on both sides

3x^2 + 6x-2=0

a=3, b=6, c=-2

Formula for discriminant is b^2-4ac

Plug in the values

b^2-4ac=(6)^2-4(3)(-2)=60

Discriminant is 60

5 0
3 years ago
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