if x ^ 2 – 4 x = 5 , then one possible value of x – 2 =
"x ^ 2 – 4 x = 5 i . e . x ^ 2 – 4 x - 5 = 0 i . e . x ^ 2 – 5 x + x - 5 = 0 i . e . ( x - 5 ) ( x + 1 ) = 0 i . e . x = 5 or - 1 i . e . x - 2 = 5 - 2 or - 1 - 2 i . e . x - 2 = 3 or - 3 answer : option c"
subtract(4, power(const_1, 2))