Question

. One of the roots of the quadratic equation
2 − 14 − 5 = 0 is 5.Complete the following activity to find
the value of k.
Solution: 5 is the root of the quadratic equation
2 − 14 − 5 = 0.
∴ Substitute = 5 in the equation.
× − × 5 − 5 = 0
∴ 25 − 70 − 5 = 0∴ 25 =
∴ =--
∴ 25 =
∴ =??

Answer 1

Answer:

50

Step-by-step explanation:

25 - 70 - 5 =0

25 = 75

x = 50