Question

r+y+z? - 3xyz is equivalent to which of the following?
(a)(r+y+z)(x+y? ++ xy + y2 +zx)
(b) (r-y-7)(x2 + y2 +2+ + xy + y2 + 2x)
(x+y+z)(x2 +
+y2 +22 - xy - yz - zx
(c)
(d) (x - x - 2)(x² + y² + 2² - xy – yz - 2x)​

Answer 1

Holy-moly! Maths is horrible!