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Mathematics
Boris
10 September, 21:17
Combine like terms.
(7+x) (7-x)
+1
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Wrigley
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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