document.write( "Question 644532: Prove or give a counterexample to each statement.\r
\n" );
document.write( "\n" );
document.write( "∀x ∈ ℝ, ((x^2) + 5x + 7 > 0)\r
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #405088 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Hint: Complete the square and take advantage of the fact that something like x^2 is always nonnegative. \n" ); document.write( " |