A4a – Simplifying and manipulating algebraic expressions by collecting like terms

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Collecting like terms

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  • Simplify \(a-2a+3a-4a+5a-6a+…+49a-50a\)
Hover for hint:
  •   Consider consecutive pairs of terms, starting from the beginning.
Hover for answer:
  •   \(-25a\)

  • Fill in the blank:  \((2x+1)+(2x+1)+(2x+1)+(2x+1) \equiv\) ___\((2x+1)\)
Hover for answer:
  •   \(4\)
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