Quadratic Formula
2x^2+4x-12 into Formula
x=-4+-(b^2-4(2)(-12))/2(2)
49
7
3x^2-27=0
x=+-3
(-8)-(-4)
-4
(-4)+(-3)
-7
4x^2+4x-2 into Formula
x=-4+-(4^2-4(4)(-2)/2(4)
64
8
2x^2-32=0
x=+-4
(-1)+(-8)
-9
(12/6)^2
64
What is the Quadratic Formula?
x=-b+-(b^2-4ac)/2a
9
3
Two real solutions
positive square root
(-7)(-7)
49
4^2-4
12
x^2+8x+4 into formula
x=-8+-(8^2-4(1)(4))/2(1)
361
19
one real solution
square root of 0
(9)(-8)
-72
(3)((4)(2)-6)
6
3x^2+9x+6 into formula
x=-9+-(9^2-4(3)(6))/2(3)
144
12
no real solution
negative square root
(2)(12/2+6)
24
(11-(4+1))/6
1