Question

If alpha , beta are zeros of p( x) =ax2 +bx+ c then find alpha3 + beta3

Answer 1

Answer:

2

Step-by-step explanation:

alpha+beta = -b/a

= -1/1

= -1

alpha×beta= c/a

= 1/1

= 1

alpha3+beta3

=(a+b)3

=(a+b)3-3ab(a+b)

= (-1)3-3×1(-1)

= -1-(-3)

= -1+3

= 2