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In high school, I didn't realize we could actually use difference of two squares to help us with mental math. Here's how we can apply this.

Howie Hua

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41,358 次观看 • 6 个月前 •via X (Twitter)

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When I was in high school, I didn't realize difference of two squares literally meant "What's the difference between these two squares?" Here's how we can visually show why x²-y²=(x-y)(x+y).

When I was in high school, I didn't realize difference of two squares literally meant "What's the difference between these two squares?" Here's how we can visually show why x²-y²=(x-y)(x+y).

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It took me way too long to realize difference of squares literally means "what's the difference between these two squares?" Here's how we can visualize x²-y²=(x+y)(x-y).

It took me way too long to realize difference of squares literally means "what's the difference between these two squares?" Here's how we can visualize x²-y²=(x+y)(x-y).

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This specific step when factoring by grouping was a core memory of mine in high school math where I just memorized what to do and didn't understand what was happening. Here's how we can make sense of it. What did you memorize in math but didn't understand?

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I wish I was shown how we can visually derive the difference of two squares formula

I wish I was shown how we can visually derive the difference of two squares formula

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