I am stumped...I can not figure these two problems out for the life of me...can someone please assist me with these two problems?
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document.write( "Find all real solutions to each equation.
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document.write( "We group the first two terms as one term:\r\n" );
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document.write( "
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document.write( "Now there are three terms on the left. Notice \r\n" );
document.write( "that if we square the variable of the\r\n" );
document.write( "middle term
, we get the \r\n" );
document.write( "variable of the first term
.\r\n" );
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document.write( "Therefore we substitute the letter \"
\" for\r\n" );
document.write( "the variable of the middle term, that is\r\n" );
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document.write( "Then squaring both sides we have\r\n" );
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document.write( "So we substitute and\r\n" );
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document.write( "becomes simply\r\n" );
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document.write( "Which we factor \r\n" );
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document.write( "and solve getting
and
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document.write( "Since
and a square root\r\n" );
document.write( "can never be negative in real numbers, we can \r\n" );
document.write( "rule out
. So
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document.write( "Substituting back\r\n" );
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document.write( "becomes\r\n" );
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document.write( "We use the quadratic formula:\r\n" );
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document.write( "--------------------------------\r\n" );
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document.write( "Find all real and imaginary solutions to each equation. \r\n" );
document.write( "70)
\r\n" );
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document.write( "Notice that if we square the variable of the\r\n" );
document.write( "middle term
, we get the \r\n" );
document.write( "variable of the first term
.\r\n" );
document.write( "\r\n" );
document.write( "Therefore we substitute the letter \"
\" for\r\n" );
document.write( "the variable of the middle term, that is\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "and squaring both sides:\r\n" );
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document.write( "
\r\n" );
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document.write( "So we substitute and\r\n" );
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document.write( "
\r\n" );
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document.write( "becomes simply\r\n" );
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document.write( "
\r\n" );
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document.write( "Which we factor \r\n" );
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document.write( "
\r\n" );
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document.write( "and solve getting
and
\r\n" );
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document.write( "Now since
, we have\r\n" );
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document.write( "
and
\r\n" );
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document.write( "Taking square roots:\r\n" );
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and
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document.write( "or\r\n" );
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document.write( "
=±
and
=±
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document.write( "Edwin
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