Question

AP
Q8. If a and B are the zeroes of the polynomial 2x2 + x - 1, find the value of a -1
+-1
09. If median is 6 and mode is find me​

Answer 1

Step-by-step explanation:

4+X+1=0

X+5=0

X= -5

a= -5 (equation.1)

then by given condition

= a-1+(-1)

= a-1-1

= a-2

= -5-2 put value of a from equation.1)

= -7