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Discussion on "8÷2(2+2) = 16" | Hashnode

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Caleb H.

Co-founder of High/Low

Aug 1, 2019

8÷2(2+2) = 16

So apparently this "equation" has been floating around the internet recently, and people seem unclear as to what the answer is. I thought the programmers on here might be interested, so here's my take: To me, it seemed extremely clear what the techni...

naclcaleb.hashnode.dev

#programming #math

Responses(1)

Sarath KCM

Hmm. What's 8 ÷ 2x when x = 4?

8 ÷ 2 * 4 = 4 * 4 = 16

CH

Caleb H.

Co-founder of High/Low

Caleb H.

Co-founder of High/Low

Same thing; the psychological effect.

Sarath KCM

Not a psychological effect. 2x is a single term. You can write it as 2 * x but then you should wrap it in paranthesis if you are replacing it in an expression. When you expanded the expression by adding just a *, you actually changed the expression.