(-3x - 1)(3x - 7)
9x2 - 18x + 99(x2 - 2x + 1)==========
The discriminant is 0.
(3x - y)(3x - 5y) and (2x + 1)(2x + 11)
It is zero because: 182-4*9*9 = 0
Yes.
TrUE
Yes
No 9xx-18x+36 9(xx-2x+4) xx-2x+4 (doesn't factor evenly)
It is: 0
(-3x - 1)(3x - 7)
9x2 - 18x + 99(x2 - 2x + 1)==========
48
The discriminant is 0.
If you mean: 9x2-36x+16 then it is not a perfect square because its discriminant is greater than zero
(3x - y)(3x - 5y) and (2x + 1)(2x + 11)
It is zero because: 182-4*9*9 = 0