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10 September, 21:17

Combine like terms.

(7+x) (7-x)

+1
Answers (1)
  1. 10 September, 23:07
    0
    x^2-49

    Step-by-step explanation:

    when u multiply the numbers in parenthesis u get 49-7x+7x-x^2 and when u simplify that u get x^2-49
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