Q1 Simplify the expression by combining like terms
10ab+2ab2-9ab
To simplify the expression 10ab + 2ab^2 - 9ab, we can add or subtract the coefficients of like terms.
The like terms in this expression are the ones with the same variable factors, which in this case is "ab".
The coefficients of the like terms are 10, 2, and -9.
Adding the coefficients:
10 + 2 - 9 = 12 - 9 = 3
The simplified expression is:
3ab
To simplify the expression by combining like terms, we add or subtract the coefficients of the terms with the same variable(s).
In the given expression, we have three terms: 10ab, 2ab^2, and -9ab.
The like terms in this expression are the terms with the same variables raised to the same powers. In this case, we have two like terms: 10ab and -9ab.
To simplify, we add the coefficients of the like terms: 10ab - 9ab.
This is equal to 1ab or simply ab.
Therefore, the simplified expression is ab.