-3x²+5x +12=0 solve using formula method
Answers
Answered by
1
Answer:
Wrong equation
Step-by-step explanation:
-3x²+5x+12=0
=> 3x²-5x-12=0
=> x = -(-5)±√(-5)²-4×3×-12/2×3
= 5±√25-432/6
= Undefined
[This equation is wrong.It can't be solved]
Answered by
3
Answer:
Step-by-step explanation:
D =
=
- (4 x -3 x 12)
=25 - (-144)
= 25 + 144
= 169
D =
D = 13
x = -b ± D
2a
x = -5 ± 13
2 x -3
x = -5 ± 13
-6
------- x = -5 - 13 -------- x = -5 + 13
-6 -6
x = -18 x = 8
-6 -6
x = 3 x = -4
3
Therein there are two possible solutions for the equation, 3 or -4/3
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