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lubasha [3.4K]
3 years ago
13

Question 3 Perform the indicated operations and express as a trinomial: (x + 4)(x - 2) + 3x

Mathematics
1 answer:
Sati [7]3 years ago
5 0

The expression after performing the indicated operation written as trinomial is:

x^2+5x-8

Step-by-step explanation:

Given

(x + 4)(x - 2) + 3x

We have to multiply (x + 4)(x - 2) and then add 3x to it

So,

(x + 4)(x - 2) + 3x\\=[x(x-2)+4(x-2)]+3x\\= (x^2-2x+4x-8)+3x\\=x^2+2x-8+3x

Combining alike terms

=x^2+2x+3x-8\\=x^2+5x-8

The expression after performing the indicated operation written as trinomial is:

x^2+5x-8

Keywords: Polynomials, Expressions

Learn more about polynomials at:

  • brainly.com/question/2150928
  • brainly.com/question/2154850

#LearnwithBrainly

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