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20 January, 05:18

Which of the following methods would be the easiest to use to solve 2x2 + 4x - 3 = 0?

factoring

isolating the x2 term and finding the square root of both sides

using the quadratic formula

all three methods would be easy and effective

+1
Answers (1)
  1. 20 January, 05:54
    0
    2x² + 4x - 3 = 0

    x = - (4) ± √ ((4) ² - 4 (2) (-3))

    2 (2)

    x = - 4 ± √ (16 + 24)

    4

    x = - 4 ± √ (40)

    4

    x = - 4 ± 2√ (10)

    4

    x = - 1 ± ¹/₂√ (10)

    x = - 1 + ¹/₂√ (10) U x = - 1 - ¹/₂√ (10)
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