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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

Sagot :

Panoyinidn
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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