(2x - 1)(4x + 1)
(2x - 9)(2x - 9) or (2x - 9)2
Notice that we can factor out 2x from both terms on the LH side: ... 4x2+6x=0. The greatest common factor of 4 and 6 is 2 . The greatest common factor of x2 and x ...
x2 - 4x - 21 = (x-7)(x+3)
2(x - 1)(2x + y)
(2x - 1)(4x + 1)
(2x - 1)(2x + 1)
(2x-1)(2x-1) = 4x^2 -4x + 1
There is no rational factorisation.
7x2 -4x -5x2 +2x = 2x2 -2x
(2x - 4)(2x + 3) The key is to look for all the factor pairs of 12.
(2x - 9)(2x - 9) or (2x - 9)2
-x2+2x
(4x - 3)(2x + 3)
8x^2 + 6x - 5 = 8x^2 + 10x - 4x - 5 = 2x * (4x + 5) - (4x + 5) = (2x -1) * (4x + 5)
8x2-10x-3 = (2x-3)(4x+1) when factored
4x2 - 9 = (2x + 3)(2x - 3)