document.write( "Question 1184481: Find an interval for b that equation has at least 1 real solution\r
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Algebra.Com's Answer #815078 by josgarithmetic(39613) $\"\"$ $\"About$

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One or two real solutions for $\"x%5E2%2Bbx%2B64=0\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"b%5E2-256%3E=0\"$ -------discriminant must be nonzero.\r
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\n" ); document.write( "\n" ); document.write( " $\"b%5E2%3E=256\"$ $\"or\"$ $\"%28b-16%29%28b%2B16%29%3E=0\"$ \r
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