document.write( "Question 923975: Peter is 7 years old and Mary is 3 years old. In how many years will the product of their ages be 96?
\n" ); document.write( "I need a quadratic equation to solve this question
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Algebra.Com's Answer #560519 by MathTherapy(10552)\"\" \"About 
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Peter is 7 years old and Mary is 3 years old. In how many years will the product of their ages be 96?
\n" ); document.write( "I need a quadratic equation to solve this question
\n" ); document.write( "

\n" ); document.write( "Let amount of years when product of their ages is 96, be Y
\n" ); document.write( "At that time(Y years from now), Peter will be 7 + Y, and Mary will be 3 + Y
\n" ); document.write( "Thus, we get:
\n" ); document.write( "(7 + Y)(3 + Y) = 96
\n" ); document.write( "\"21+%2B+10Y+%2B+Y%5E2+=+96\" ----- FOILing left side of equation
\n" ); document.write( "\"21+-+96+%2B+10Y+%2B+Y%5E2+=+0\"
\n" ); document.write( "\"-+75+%2B+10Y+%2B+Y%5E2+=+0\", or \"Y%5E2+%2B+10Y+-+75+=+0\"
\n" ); document.write( "There's your quadratic equation
\n" ); document.write( "Solve for Y, the amount of years from now, when their ages will multiply to 96 \n" ); document.write( "
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