Question

x square minus 4x minus 4 and find the value of one by alpha plus one by beta minus alpha into beta

Answer 1

Answer:

3

Step-by-step explanation:

x²-4x-4 is a polynomial

alfa and beta are two it's two zeroes

to find => 1/alfa + 1/beta - alfa×beta

=> ( 1/alfa+1/beta) - alfa×beta

=> [( alfa+beta) / alfa× beta] - alfa× beta

=> [ (-b/a) / (c/a)] - c/a

=> (-b/c) - (c/a)

=> - (ab+c²) / ac

=> - (-4+16) / -4

=> -12/-4

=> 3

Hope this helps you