Asked by Anneliese
                Please show me how to COMPLETELY factor this expression.
z^2 + 11z -42
I appreciate your generous help,thank you.
            
        z^2 + 11z -42
I appreciate your generous help,thank you.
Answers
                    Answered by
            Reiny
            
    Can you think of 2 numbers which have a sum of 11 and when multiplied give a product of -42 ?
how about -3 and +14 ?
Now form the factors
    
how about -3 and +14 ?
Now form the factors
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