Question

Which of the following is not an algebraic tool required for simplifying the polynomial expression?

Answer 1

C

Explanation:

Let's simplify this expression first:

`Line1: 3x+3(2x+4)-8\\Line2: 3x+6x+12-8\\Line3: 9x+4\\`

• In Line 2, we have used distributive property (
  `a(b+c)=ab+ac`) and thus multiplication.
• In Line 3, we have combined like terms

Choices A, B, and D can be eliminated as we have done those to simplify the expression.

Thus, "evaluation" -- choice C is the correct answer for this question.

Evaluation is when we plug in a specific value in the variables to find a "value/answer" of the expression given.