Question

Identify the terms and the like terms in the expression.

$-x-9x^2+12x^2+7$

Answer 1

Identifying the terms and the like terms:

We have given an algebraic expression $-x-9x^2+12x^2+7$

We know that each part of an algebraic expression which are separated by plus sign (+) or minus sign (-) is called the term of an algebraic expression.

So, the terms in the given expression are: $(-x),(-9x^2),\left(12x^2\right),\left(7\right)$

We know that the like terms are defined as the terms that contain the same variable which is raised to the same power.

Like terms in the given expression are $(-9x^2)$ and $\left(12x^2\right)$

Hence, the terms are$(-x),(-9x^2),\left(12x^2\right),\left(7\right)$ and like terms are $(-9x^2)$ and $\left(12x^2\right)$.