The Quadratic Formula
A quadratic equation is an equation of the form
where a, b, and c are real numbers and a ≠ 0
The quadratic formula is : If
, then
The quadratic formula is: If
, then
a
= 1, b = 3, and c = −7
This expression gives two answers .
The quadratic formula is : If
, then
a
= 2, b = -5, and c = 3
The solutions are rational . We
could have factored .
If
, then
a
= 3, b = -5, and c = 1
If
, then
a
= 2, b = -4, and c = -1
If
, then
a
= 1, b = -2, and c = -10
The quadratic formula is : If
, then
The sum of the two solutions will always be
The product of the two solutions will always be
x2 – 5x – 14 = 0
x = 7 or x = – 2
7 + (-2) = 5
7 (-2) = -14
The sum of the two solutions will always be
The product of the two solutions will always be
8x2 + 14x + 3 = 0.
(4x + 1)(2x + 3) .
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