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belka [17]
3 years ago
8

The difference of twice a number and 4 is 16 .

Mathematics
2 answers:
german3 years ago
7 0

Answer:

Let X be the number.

Twice the number would be 2x

The difference between the two, would be subtraction, so you would subtract 4 from 2x


The equation becomes 2x-4 = 16


Now solve for x:

2x-4 = 16

Add 4 to each side:

2x = 20

Divide both sides by 2:

x = 20/2

x = 10


The number is 10.


ICE Princess25 [194]3 years ago
7 0

Answer:

2x - 4 = 16

Step-by-step explanation:

We need to express this:

2x - 4 = 16.

To solve for x.

2x = 20

x = 10



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2 years ago
Complete the factorization of 3x ^ 2 - 10x + 8 3x^ 2 -10x+8=(x- Box x-4)
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Answer:

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Step-by-step explanation:

The general form of a quadratic polynomial is given by:

ax^2+bx+c    (1)

You have the following polynomial:

3x^2-10x+8    (2)

In order to complete the factorization you can use the quadratic formula, to obtain the roost of the polynomial. The quadratic formula is given by:

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Then, the factorization of the polynomial is:

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