Write the word or phrase that best completes each statement or answers the question.
-
A){-11}
B){1}
C){-9}
D)no real solution

Question

Write the word or phrase that best completes each statement or answers the question.
-
A){-11} 
B){1} 
C){-9} 
D)no real solution

Quizplus · Accepted Answer

This is a quadratic equation in the form of ax² + bx + c = 0, where a = 11, b = -7, and c = -11. Using the quadratic formula [-b ± sqrt(b² - 4ac)]/2a, we get [-(-7) ± sqrt((-7)² - 4(11)(-11))]/2(11) = [7 ± sqrt(605)]/22. Since the discriminant (b² - 4ac) is positive, there are two real solutions. These solutions are approximately 1.04 and -9.53. Therefore, the best choice is A) {-11}.

Write the Word or Phrase That Best Completes Each Statement