Miscellany
public text v1 · immutable(3x + 3)^2 = 3xy - 7
(3x + 3)(3x + 3) = 3xy - 7
9x^2 + 9x + 9x + 9 = 3xy - 7
9x^2 + 18x = 3xy - 7 - 9
9x^2 + 18x - 3xy = -16(3x + 3)^2 = 3xy - 7
(3x + 3)(3x + 3) = 3xy - 7
9x^2 + 9x + 9x + 9 = 3xy - 7
9x^2 + 18x = 3xy - 7 - 9
9x^2 + 18x - 3xy = -16