Multiple Choice Question (MCQ)

Calculate the sum of the expression

2x+2x+2x+2x= 2^x+2^x+2^x+2^x=

  1. 2x+2 2^{x+2}

  2. ×

    22x 2^{2x}

  3. ×

    24x 2^{4x}

  4. ×

    22x+2 2^{2x+2}

  5. ×

    28x 2^{8x}

Collected in the board: Exponential

Steven Zheng posted 3 years ago

Answer

  1. The sum of the four identical quantities is 4 times of one of those quantities, so the sum of the four terms 2x 2^x is 4 times 2x 2^x

    4×2x=22×2x=2x+2 4×2^x = 2^2 × 2^x=2^{x+2}

Steven Zheng posted 3 years ago

Scroll to Top