2
It is (A-1)(A+1) when factored
2x squared minus 5x minus 3 factored is (2x+1)(x-3).
Eighteen minus a negative 3 is twenty-one (21).
(a - 2b)(2a - b)
5
18 (eighteen)
It is: (x+5)(x-8) when factored
(2y+1)(y−5)
It is: (x+5)(x-8) when factored
14x squared minus 7x to the 3rd power can be factored to 7x2(2-x).
64-x2 = (8-x)(8+x) when factored