5. D. Quadratic Formula
Step-by-step explanation:
because there has an equal sign symbol.
A.6,-4
The quadratic formula is:
________
-b±✓b²-4ac
x=_____________
2a
,and the general formula of a quadratic equation is:
ax²+bx+c=0
with are current example,x²-2x-24=0
we know that our is already in the standard from hence we do not need to do any manipulation
to compute for x
[solution]
x²-2x-24=0
we know that:
a=1
b=-2
c=-24
evaluating of the quadratic equation with the values above
_______
x=__________
__________
-(-2)±✓(-2)²-4(1)(-24)
x=_______________
2(1)
2+✓4+96
2
____
2±✓100
x=_________
2±10
x=_______
12 8
x=__,-__
2 2
x=6,-4
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Answers & Comments
5. D. Quadratic Formula
Step-by-step explanation:
because there has an equal sign symbol.
A.6,-4
The quadratic formula is:
________
-b±✓b²-4ac
x=_____________
2a
,and the general formula of a quadratic equation is:
ax²+bx+c=0
with are current example,x²-2x-24=0
we know that our is already in the standard from hence we do not need to do any manipulation
to compute for x
[solution]
x²-2x-24=0
we know that:
a=1
b=-2
c=-24
evaluating of the quadratic equation with the values above
_______
-b±✓b²-4ac
x=__________
2a
__________
-(-2)±✓(-2)²-4(1)(-24)
x=_______________
2(1)
_______
2+✓4+96
x=__________
2
____
2±✓100
x=_________
2
2±10
x=_______
2
12 8
x=__,-__
2 2
x=6,-4