Question

Problem Set - 2
1. Choose the correct answers for the following questions.
(1) Which one is the quadratic equation ?
(A) - 3 = x (B) x (x + 5) = 2 (C)n - 1 = 2n (
(2) Out of the following equations which one is not a quadra
(A) ... + 4x = 11 + ? (B).r' = 4x (C) 5r= 90
(3) The roots of r + kr + k = 0 are real and equal, find k.
(A) 0
(B) 4
(C)0 or 4 (D) 2
(4) For 2 - 5x + 3 = 0 find the value of the discrimina
(A)-5 (B) 17 (C) 2 (D) 2/3 - 5​

Answer 1

Answer:

1-b,

Step-by-step explanation:

1)x(x+5)=2

x^2+5x=2

x^2+5x-2=0

this of the form ax^2+bx+c=0