Question

iv. Equation (x + 1)2 - x = 0;
Four real roots b.
ane real roots
Two real roots
No rual roots​

Answer 1

Answer:

12 - 4(1)(1) ∴ D-3

Step-by-step explanation:

Let’s simplify the equation,

Let’s simplify the equation, (x2+ 1)2 - x2 = 0

Let’s simplify the equation, (x2+ 1)2 - x2 = 0 ⇒ x4 + 2x2 + 1 - x2 = 0

Let’s simplify the equation, (x2+ 1)2 - x2 = 0 ⇒ x4 + 2x2 + 1 - x2 = 0 ⇒ x4 + x2 + 1 = 0 Let x2 = y,

Let’s simplify the equation, (x2+ 1)2 - x2 = 0 ⇒ x4 + 2x2 + 1 - x2 = 0 ⇒ x4 + x2 + 1 = 0 Let x2 = y, ⇒ y2 + y + 1 = 0 D = b2 - 4ac = 0 = 12 - 4(1)(1) ∴ D-3