lajuve111 lajuve111

03-04-2017
Mathematics

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Amelie found the solutions of the equation x2 − 1x = 42 to be 6 and −7. Explain why this answer is incorrect. Then, find the correct solutions. Complete the explanation.

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student0700 student0700

03-04-2017

i dont know how to solve it but since the answer shows as 6 and -7, if you plug it in as x values, one tiem as 6 and second time as -7 it doesnt equal 42

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