The expression ‘x 3x’ can be simplified by considering it as a multiplication of two terms: ‘x’ and ‘3x’. To do this, we multiply the coefficients and combine the ‘x’ terms.
The coefficient ‘3’ comes from the ‘3x’ term, and ‘x’ has an implicit coefficient of 1. Therefore:
x * 3x = (1 * 3) * (x * x) = 3x^2
This means that ‘x 3x’ simplifies to ‘3x squared’. In summary, ‘x 3x’ is a concise way to express the multiplication of ‘x’ by ‘3x’, resulting in ‘3x^2’.