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What is 7 x- 3 x 7 x-2 5 x+ 3 x equal to?

Options

  1. Ax
  2. Bx
  3. C2 x
  4. D2 x

Correct answer

B. x

Step-by-step solution

aligned & 7 x- 3 x 7 x+ 3 x-2 5 x & = -2 5 x 2 x 2 5 x 2 x-2 5 x & = -2 5 x 2 x -2 5 x(1- 2 x) = 2 x 2 ^2 x & = 2 x x 2 x x = x . aligned

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