x2-9x+8=0 has two solutions:
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
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
3x^(2) +9x - 2x -6 Collect 'like terms'. Hence 3x^(2) + 7x - 6 Next write down all the factors of '3' and '6' Hence 3 ; 1' & 3' 6 ; 1,6 ; 2,3. From these pairs of number we select a pair from each coefficient, that add/multiply to '7' . Hence (3' x 3 ) & (1' x 2) ; NB 'dashes' (') to indicate source of numbers. Write up brackets (3x 2)(x 3) -2)(x + 3) Next we notice that the '6' is negative, so the two signs are different (+/-) The '7x' is positive , so the larger number takes the positive sign . Hence (3x - 2)(x + 3)
(x + 12)(x - 3)
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
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