You can use distubetive property. Well you multiply 4 to both of the numbers. 4 times 2x equals 8x. So that will be the first part of your expression. 4 times 5 equals 20. So that will be the second part of your expression. So the answer is 8x + 20

5 0

4 years ago

In your own words, explain 3 or more sentences "how do you multiply rational number?" Tell how the signs, negative and positive,

vagabundo [1.1K]

Answer:

Rules & Examples of Integers multiplication.

Step-by-step explanation:

A rational number is a number that can be expressed as a fraction of integers (positive or negative numbers). Every integer is a rational number.

They are multiplied based on following rules :

Positive (+) x Positive (+) = Positive (+) , +2 x +2 = 4
Positive (+) x Negative (-) = Negative (-) , +2 x -2 = -4
Negative (-) x Positive (+) = Negative (-) , -2 x +2 = -4
Negative (-) x Negative (-) = Positive (+) , -2 x -2 = 4

8 0

3 years ago

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