x2-9x+8=0 has two solutions:
9x^(2) + 16 DOES NOT factor. Remember ; two squared terms with a plus(+) between them DOES NOT factor However, two squared terms with a minus(-) between them DOES factor . Hence 9x^(2) + 16 = (3x)^2) + 4^(2) does NOT factor However, 9x^(2) - 16 = (3x)^2) - 4^(2) does factor to ( (3x - 4)(3x + 4) Note the two different signs.
9x2 - 18x + 99(x2 - 2x + 1)==========
Assuming it's a plus sign, that factors to (2x + 1)(x + 4)
(9x + 8)(9x - 8)
That doesn't factor neatly. Applying the quadratic equation, we find two real solutions: (-2 plus or minus the square root of 5) divided by 3x = 0.07868932583326327x = -1.4120226591665965
9x^(2) + 16 DOES NOT factor. Remember ; two squared terms with a plus(+) between them DOES NOT factor However, two squared terms with a minus(-) between them DOES factor . Hence 9x^(2) + 16 = (3x)^2) + 4^(2) does NOT factor However, 9x^(2) - 16 = (3x)^2) - 4^(2) does factor to ( (3x - 4)(3x + 4) Note the two different signs.
(x + 12)(x - 3)
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
9x2 - 18x + 99(x2 - 2x + 1)==========
(x + 2)(3x - 1)(3x + 1)
x2-9x can be factored by taking x out of each term x(x-9)
Assuming it's a plus sign, that factors to (2x + 1)(x + 4)
(3x + 8)(3x - 8)
(9x + 8)(9x - 8)
x2 - 9x + 20 = (x - 4)( x - 5)
That doesn't factor neatly. Applying the quadratic equation, we find two real solutions: (-2 plus or minus the square root of 5) divided by 3x = 0.07868932583326327x = -1.4120226591665965
2x2-9x+4 = (2x-1)(x-4) when factored