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3 years ago

Which expression is equivalent to 18c-6d? A: 2(9c-6d)

2 answers:

7 0

Answer: answer is C because if you do 2x9 abd 2x3 you 18c-6d and you cant subtract thise cause they have different variables

Step-by-step explanation:

satela [25.4K]3 years ago

3 0

Answer:

$6(3c-d)$ or $3(6c - 2d)$

Step-by-step explanation:

Step 1: Factor out the GCF

The GCF for 18c and 6d is just the number 6.

$18c - 6d$

$6(3c - d)$

Or... you can pull out a 3

$18c-6d$

$3(6c-2d)$

Answer: $6(3c-d)$ or $3(6c - 2d)$

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Which system of equations can you use to find the roots of the equation 2x3 + 4x2 – x + 5 = –3x2 + 4x + 9?

Degger [83]

Answer:

$y=2x^3+4x^2-x+5$

$y=-3x^2+4x+9$

Step-by-step explanation:

The given equation is in the form $2x^3+4x^2-x+5=-3x^2+4x+9$

We have to evaluate the correct system of equations which can be used to find the roots of the equation.

We can find the root of the equation by plotting the graph of the equations. In order to graph, we can assume the left and right hand side of the given equation as two separate equations.

Therefore, we have

$y=2x^3+4x^2-x+5$

$y=-3x^2+4x+9$

Now, we plot the graph of these two equations in the same coordinate plane. The intersection point (s) would be the roots of the given equation.

Hence, the system of equation that we can use to find the root of the given equation is

$y=2x^3+4x^2-x+5$

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