y³ - 27 = y³ - 3³ = (y - 3)(y² + 3y + 9)
m² + 2mn + n² = (m + n)²
у³-27=у³-3³=(у-3)(у²+3у+9)
m²+2mn+n²=(m+n)²
y³ - 27 = y³ - 3³ = (y - 3)(y² + 3y + 9)
m² + 2mn + n² = (m + n)²
у³-27=у³-3³=(у-3)(у²+3у+9)
m²+2mn+n²=(m+n)²