add or subtract polynomials by simply combining like terms

(x+5)+(4x-7)

2 answers

To add the polynomials \((x + 5)\) and \((4x - 7)\), you can combine like terms.

  1. Identify like terms:

    • The like terms for \(x\) are \(x\) and \(4x\).
    • The constant terms are \(5\) and \(-7\).
  2. Combine like terms:

    • For the \(x\) terms: \(x + 4x = 5x\)
    • For the constant terms: \(5 - 7 = -2\)
  3. Write the result:

    • Combine the results of the like terms: \[ 5x - 2 \]

So, \((x + 5) + (4x - 7) = 5x - 2\).

do you order them a certain way first?