document.write( "Question 285399: 5x^2+16x-84=0 \n" ); document.write( "

Algebra.Com's Answer #207152 by jsmallt9(3758) $\"\"$ $\"About$

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$\"5x%5E2%2B16x-84=0\"$
\n" ); document.write( "We either factor this or use the Quadratic Formula. It will factor:
\n" ); document.write( " $\"%285x+%2B+14%29%28x+-+6%29+=+0\"$
\n" ); document.write( "From the Zero Product Property we know that this product is zero only if one of the factors is zero:
\n" ); document.write( "5x + 14 = 0 or x - 6 = 0
\n" ); document.write( "Solving these we get:
\n" ); document.write( "x = -14/5 or x = 6
\n" ); document.write( "which are the same answers we get from the Quadratic Formula if we use it correctly and simplify it correctly. \n" ); document.write( "

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