What’s the product of 3x(x² + 4)?

3x³ + 12x

Step-by-step explanation:

3x is 3 times x. If we multiply x times x², we get x³. This is because x² can be written as x·x, so if we multiply x by that, we get x·x·x. Since we are multiplying x² by 3x, we get 3x³. Now, we multiply 3x by 4, this gets us 12x. Now, we write it out as 3x³ + 12x.

10 b/c 5*2 =10

step-by-step explanation:

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answer: d.) the total number of protons and neutrons is 15

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~

your friendly neighborhood human spider! .