(b-4) squared
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∙ 2012-05-08 02:14:42Solve using the quadratic formula
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.
It can't be factored because its discriminant is less than zero.
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Solve using the quadratic formula
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.
x-8
Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.
(y - 8)(y - 2)
14x2-7x2-16 7x2-16 (this can't be simplified any more)
Without any parenthesis is: 92 - 2 * 15 + 16 - 8 = 59
{-1,7}
62 - 16 = 20
It can't be factored because its discriminant is less than zero.
9x2 + 18x - 16 = 0 ⇒ (3x - 2)(3x + 8) = 0 ⇒ 3x - 2 = 0 → x = 2/3 or 3x + 8 = 0 → x = -22/3