how to combine like and unlike terms - Maths - Algebraic Expressions

Question

how to combine like and unlike terms

Gursheen kaur. · Accepted Answer

Like Terms: These are those terms that contain the same variables raised to the same power For example: 2x + 3y + 15 + 3x Terms 2x and 3x are like terms so when we solve this sum we write: 2x + 3x +3y + 15 or 5x + 3y + 15 Similarly, $x^{2} y + 2 x y + 6 x^{2} y + 9 x y$ Terms $x^{2} y a n d x y$ are like terms so when we solve this sum we write: $= (x^{2} y + 6 x^{2} y) + (9 x y + 2 x y) = 7 x^{2} y + 11 x y$ Unlike Terms:These terms cannot be combined For example: 2x + 3y + 15z Terms are unlike terms so we can't combine them