SOLUTION: Prove or give a counterexample to each statement. ∀x ∈ ℝ, ((x^2) + 5x + 7 > 0)
Algebra
->
Proofs
-> SOLUTION: Prove or give a counterexample to each statement. ∀x ∈ ℝ, ((x^2) + 5x + 7 > 0)
Log On
Logic: Proofs
Logic
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Proofs
Question 644532
:
Prove or give a counterexample to each statement.
∀x ∈ ℝ, ((x^2) + 5x + 7 > 0)
Answer by
jim_thompson5910(35256)
(
Show Source
):
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.