How to Solve x^2 = 4 | Problem #1

1 , ( x + y ) 1 = x + y , ( x + y ) 2 = x 2 + 2 x y + y 2 , ( x + y ) 3 = x 3 + 3 x 2 y + 3 x y 2 + y 3 , ( x + y ) 4 = x 4 + 4 x 3 y + 6 x 2 y 2 + 4 x y 3 + y ...Read more

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Apply the power rule and multiply exponents, (am)n=amn ( a m ) n = a m n . x2⋅4 x 2 ⋅ 4. Step 2. Multiply 2 2 by 4 4 . x8 x 8. (x2)4 ( x 2 ) 4 ...Read more

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In order to factor x 2 + 4 as (x+something)(x+something) you'd need to find two numbers that multiply to 4 and also add to zero. 2 and 2 doesn't work.Read more

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x^2/4 means (x^2)/4 if you follow order of operations, because exponents come before division. The American acronym for ...Read more

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Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, ...

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Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) a 2 - b 2 = ( a + b ) ( a - b ) where a=x a = x and b=2 b ...Read more

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x^2 - 4 consider that in any quadratic the two numbers which end up in the brackets at the end must add up to the middle term in x. they must also multiply ...Read more

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