3 years ago

What are the solutions of x^2 - 4 = 0

Mathematics

2 answers:

diamong [38]3 years ago

7 0

It is a difference of squares, so we can factor this to

$(x+2)(x-2)=0$

Then, we can solve for $x$ .

$x=-2,2$

Hope this helps.

頑張って!

Gennadij [26K]3 years ago

7 0

Answer:

x = ± 2 i

Step-by-step explanation:

Explanation:

subtract 4 on both sides to get

−

Take the square root of both sides to get

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