328 If squaring a number means multiplying that number with itself then shouldn't taking square root of a number mean to divide a number by itself? 152 Why not include as a requirement that all functions must be continuous to be differentiable? 124 If the square root of two is irrational, why can it be created by dividing two numbers? 91 What are the names of numbers in the binary system? 87 Systems of linear equations: Why does no one plug back in?

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 +10 Finding $x^8+y^8+z^8$, given $x+y+z=0$, $\;xy +xz+yz=-1$, $\;xyz=-1$ +10 Explaining why cross multiplication works using a pie -2 How can we show binomial function is convex without calculus? +15 Verifying that a value is a root of a given polynomial in a Grafakos paper.

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 1k algebra-precalculus × 357 340 inequality × 147 629 polynomials × 281 331 geometry × 172 534 calculus × 182 312 sequences-and-series × 122 470 complex-numbers × 267 290 soft-question × 17 433 real-analysis × 125 262 elementary-number-theory × 84

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