Question 299912
-x[-x(x - a) - (a -x)]; a= -5 x= -2 I home school my 14 year old daughter.
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2[2(-2+5)-(-5+2)]
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2[2(3)-(-3)]
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2[6+3]
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= 18
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Suggestion: Let your daughter work with a math instructor.
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Cheers,
Stan H.