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mezya [45]
3 years ago
8

What are the solutions of the quadratic equation 4x2 - 8x – 12 = 0?

Mathematics
1 answer:
Juliette [100K]3 years ago
5 0

Answer:

see bottom

Step-by-step explanation:

divide through by 4

x2 - 2x - 3 = 0

x2 - 3x + x - 3 = 0

(x2 - 3x) + (x - 3) = 0

x(x - 3) + 1(x - 3) = 0

(x + 1) (x - 3) = 0

x + 1 = 0 and x - 3 = 0

x = -1 and x = 3

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