New Enroll in RBI Grade B New Batch - Starts on May 21

Question

What should be the value of t in the equation x² + tx + 64

= 0 so that it has two equal real roots?

A 11

B Both 16 and -16

C 19

D 27

Practice Next

More Quadratic equation Questions

In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
Statements: U ≤ X = V < W; V > T = Q ≥ R

Conclusions: I. V ≥ R II. W > R
Statement: C ≥ D > E ≥ H; I < E ≤ F < G

Conclusions: I. H > D II. G < H
...
Statements: U < N ≥ C; C > Z = S; U ≥ H ≥ O

Conclusions:

I. N > O

II. S ≤ N

III. S > U
Statements: A ≥ B = C; A < D < E; F > G > E

Conclusion:

I. D > C

II. C < E
Statements: P > Q = R ≤ S; R > T > U; U = Z ≥ O

Conclusions:

I. P > U

II. O < S

III. R > P
Statements: Q > M > Y < N = H ≥ S < V < R ≤ K

Conclusion

I: K > Y

II: N > S
Statement: M < N ≤ O = P, Q ≥ O ≤ R ≤ Z

Conclusion: I. Q > M II. Z > M
...
Statements: M ≥ O ≥ P ≤ W, N ≥ K ≥ Y = M

Conclusion:

I. N > W

II. Y ≥ P
Statement: Z > A ≥ B; Y > W ≤ A

Conclusions: I. Z > W II. Y > Z
...