alleryStart learning →Which equality holds for every real x and y?
A7x + y = 7xy
Bx + x = 2x
Cx² + x³ = x⁵
D2 + x = 2x
Answer & Solution
Correct answer: B. x + x = 2x
Two copies of the same term x combine to 2x; addition does not generally multiply unlike terms or add exponents.
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