Multiple Choice Question (MCQ)

When each side of a square with side s is lengthened by 2 inches, which of the following represents the increase, in square inches, of the area of the square?

  1. ×

    s^2 + 4

  2. ×

    (s+2)^2

  3. ×

    4

  4. ×

    2s+4

  5. ✓

    4s+4

Collected in the board: Calculate algebraic expressions

Steven Zheng posted 4 months ago

Answer

  1. A square with side s has area of s^2. If the side is lengthened by 2 inches, the area is

    (s+2)^2 = s^2+4s+4

    The increase from the original is 4s+4 square inches


Steven Zheng posted 4 months ago

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