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How to simplify (-2x)^2

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The answer to (-2x) ^2 is 4x^2. To find the answer you will simply multiply -2 by -2 to get 4 and also do the same for X to get X^2. The fact that you multiply two negative integers is the reason you get 4.

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i have a question, ok suppose i have 2x^2-3x-5. ok i factor it and i comes out to (2x-5)(x+1)...... how do i know when i should set both to zero and solve or when do i just leave it in that factored form???
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(-2x)^2 =
(-2x)(-2x) =
(-2)(-2)(x)(x) =
(comment if you need more help)

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thank you so much you have been a big help and i appreciate it. thank you again
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i have a question, ok suppose i have 2x^2-3x-5. ok i factor it and i comes out to (2x-5)(x+1)...... how do i know when i should set both to zero and solve or when do i just leave it in that factored form???
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1) If it just says FACTOR then leave it in the factored form.
2) If it says SOLVE then set what's in the ( )'s equal to zero and work it out.
(comment again if I can explain anything)
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thank you
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