Question

Which relation is quadratic?

a. y = x² - x² + 4x + 2
b. y = (2x²)(x+1)
c. y = (x+5)²
d. y= 2x-6x+3

Answer 1

Answer:

Out of the relation

a. y = x² - x² + 4x + 2

b. y = (2x²)(x+1)

c. y = (x+5)²

d. y= 2x-6x+3

(x+5)^2 = x^2 + 10x + 25 is a quadratic equation

Answer 2

Answer:

c

Step-by-step explanation: if you want to know its quadrtic or not the first term should be squared only and if we expanded (x+5)^2  its going to be x^2 +10 x +25