Stephanie will use a 1 fifth-gallon pitcher to fill an empty 7 eighths-gallon jug for her lemonade stand. How much lemonade will
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here ,
or,
or,
or,7x²+3x-4=-4
or,7x²+3x=0
or,x(7x+3)=0
Either,x=0| Or,7x+3=0
|or,7x=-3
|or,x=
So , the solution set is S={0,-