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What is the mathematical formula of product?
The mathematical formula of product is multiplicand × multiplier = product.

The formula of multiplicand × multiplier = product is correct. Multiplication follows the law of exchange. When two numbers are multiplied, the position of the exchange factor remains unchanged. If the dependent variable f and the independent variables x 1, x2, x3, ... ….xn are qualitatively different from each independent variable, it will lose its meaning without any independent variable f, which is called multiplication.

For example:

1、 1×2=2;

2、3×4= 12;

3、5×5=25;

4、85× 15= 1275;

5、85×28=2380;

6、43×66=2838;

7、58×36=2088;

8、87×58=5046。