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31 votes
solve the quadratic by taking square roots. as=a,-a where a and -a are the values you found when solving. 3x^2-7=140

User Pan Congwen
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1 Answer

14 votes
14 votes

Answer:

x=-7 OR X=7

Explanation:

3x^2-7-140=0

3x^2-147=0

x^2=49

x=±7

x= -7 OR x=7

hope u helped :)

User Herbert Balagtas
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3.0k points