document.write( "Question 71385: I tried doing the first part of this problem, but not sure if it is right. I dont know how to do part b. Can you please help me?\r
\n" );
document.write( "\n" );
document.write( "1) Using the quadratic equation x2 – 4x – 5 = 0, perform the following tasks:
\n" );
document.write( "a) Solve by factoring.
\n" );
document.write( "Answer:x=5, -1\r
\n" );
document.write( "\n" );
document.write( "Show work in this space. 1x2-4x-5 = (x-5)(x+1)\r
\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "b) Solve by using the quadratic formula.
\n" );
document.write( "Answer:\r
\n" );
document.write( "\n" );
document.write( "Show work in this space
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #51060 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1) Using the quadratic equation x2 – 4x – 5 = 0, perform the following tasks: \n" ); document.write( "a) Solve by factoring. \n" ); document.write( "Answer:x=5, -1 \n" ); document.write( "Show work in this space. 1x2-4x-5 = (x-5)(x+1) \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "b) Solve by using the quadratic formula. \n" ); document.write( "Answer: \n" ); document.write( "Quadratic formula: x=[-b+-sqrt(b^2-4ac]/2a \n" ); document.write( "----------- \n" ); document.write( "x = [4+-sqrt(4^2-4*1*-5]/2 \n" ); document.write( "x = [4+-sqrt(36)]/2 \n" ); document.write( "x = [4+6]/2 or x = [4-6]/2 \n" ); document.write( "x = 10/2 or x = -2/2 \n" ); document.write( "x = 5 or x = -1 \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |