bella61
bella61
13-07-2017
Mathematics
contestada
How to solve this equation
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bcalle
bcalle
13-07-2017
x^2 - 4 = 0
add 4 to both sides
x^2 = 4
Take the square root of both sides
x = + - √4
x = + - 2
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answncks1230ot0795
answncks1230ot0795
13-07-2017
(x-2)(x+2)=
this is the answer
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