Question

Please explain the answer as an Attachment​

Answer 1

Just factorise the given equation.

x² - 6x + 5 = 0

x² - x - 5x + 5 = 0

x(x - 1) - 5(x - 1) = 0

(x - 1)(x - 5) = 0

Thus,

x = 1 or x = 5

Given that p and q are roots of the quadratic equation. Thus let,

p = 1 and q = 5.

Then,

p³ + q³ = 5³ + 1³ = 125 + 1 = 126

On taking p = 5 and q = 1, we still get 126.

Thus the answer is (d) 126.

#answerwithquality

#BAL