Question

Which one is the quadratic equation?
(A) = 3x (B) x(x+5)=4
(C) n-1=2n
(D) (x+2) = x​

Answer 1

Answer:

Option B

Step-by-step explanation:

x(x+5)=4

==> X^2 + 5x = 4

==> X^2 + 5x - 4 = 0

and the quadratic equation is ax^2 + bx + c = 0