Question

Determine whether the values given against the Quadratic Equation are the roots of the quadratic equation? x² + 4x + 4 = 0; x=0,-2​

Answer 1

Answer:

For x=−1

(−1)

2

+4(−1)−5=0

⇒1−4−5=0

⇒−3−5=0

⇒−8



=0

So,x=−1 is not a solution of the given equation.

Thus, only x=1 is the root of the given equation.