Keri374 Keri374

29-05-2015
Mathematics

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Solve by using the perfect squares method.
(2x + 4)2 = 64

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Аноним Аноним

29-05-2015

(2x + 4)² = 64

Taking the square root of both sides:

2x + 4 = ±8

subtract 4 from both sides:

2x = -4 ± 8

And dividing 2 from both sides:

x = -2 ± 4

x = -6 and 2

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