Question

Simplify the following expression and then write down the coefficient of x²: x² + x² + x² + x²

Answer 1

The expression is 4x² and coefficient is 4.

Explanation:

All have the same variables, x², so you add up together :

`1{x}^(2) + 1{x}^(2) + 1{x}^(2) + 1{x}^(2)`

`= 4 {x}^(2)`