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Which of the following statement(s) is always true?
a
b + c
= 2 + ²
a² + b² = (a + b)²
49 - x² = 7 - x
I.
II.
III.
IV.
a² + b
a(b + c)
a+b
b + c
O III only
O III and IV only
O I and II only
O I, II, and IV only
O All the above statements are false.

Which of the following statements is always true a b c 2 a b a b 49 x 7 x I II III IV a b ab c ab b c O III only O III and IV only O I and II only O I II and IV class=

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