Question

22. Find the roots of the following quadratic
equation:
x2 – 3x – 10 = 0​

Answer 1

Answer:

x=10

Step-by-step explanation:

x2-3x-10=0

x2-3x=10

x=10

Answer 2

Answer:

x² + 2x - 5x - 10 = 0

⇒ x(x + 2) - 5(x + 2) = 0

⇒ (x - 5) (x + 2) = 0

∴ x - 5 =0

  x = 5

and,

   x + 2 = 0

   x = -2

Hence,

x = 5 and x = -2 are the roots of this equation.