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Mathematics, 19.03.2021 08:00 dorkygirl

Clare solves the quadratic equation 4x2 + 12x + 58 = 0, but when she checks her answer, she realizes she made a mistake. Explain what Clare's mistake was.
-12 + 122 – 4.4.58
2.4
-12 + 144 – 928
2=
8
-12 + V-784
2=
8
-12 + 28i
2 =
8
x = -1.5 = 28

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Answers: 3

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