Question

Which of the following equations is quadratic?
xx² + 1) = 0
5(4x + 2) = 3
(x+3)(x + 4) = 5

Answer 1

Answer:

Step-by-step explanation:

(x+3)(x+4)=5 is a quadratic bcos

x^2+4x+3x+12

x^2+7x+12

X is having power of 2