Question

alpha beta are the zeros of the polynomial x square minus x minus 4 then the value of alpha + beta minus alpha beta equal to​

Answer 1

Answer:

5

Step-by-step explanation:

Here, a=1, b= -1 and c= -4

We know, sum of zeros i.e alpha + beta = -b/a

therefore, alpha + beta = -(-1)/1

= 1

also, product of zeros = alpha*beta = c/a

= -4/1

= -4

now,

alpha+beta - alpha*beta= 1-(-4)

=5