2x2 - 9x + 4 = (2x - 1)(x - 4)
2x2=4
It is 2x2 - 7x + 9
2x2=4 1x4=4 3x3=9 1x9=9
The discriminant is 88.
2x2 + 17x - 9 = 2x2 + 18x - x - 9 = 2x(x + 9) - 1(x + 9) = (2x - 1)(x + 9)
The factorisation is as follows: 2x2 + 7x - 9 = (x - 1)(2x + 9).
2x2 - 9x = 18 2x2 - 9x -18 = 0 (2x - 18)(x + 9) x= -9 and 9
2x2 - 9x + 4 = (2x - 1)(x - 4)
2x2=4
2x2=4+9=13
9 total. 4 1x1 2 1x2 2 2x1 1 2x2
(x - 2)(2x + 9)
The discriminant is 88.
It is 2x2 - 7x + 9
2x2=4 1x4=4 3x3=9 1x9=9
The discriminant is 88.