Question

if a and b are the roots of the equation xsquare+ax-b=0 then find a and b
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Answer 1

Answer:

a = - 1, b = 2

Step-by-step explanation:

x² + ax - b = 0

Sum of roots = a +b = -a/1

=> a+b = - a

=> b = -2a  

Product of roots = ab = -b/1

=> ab = - b

=> a = -1

Substitute value in b = -2a

= -2 * -1

= 2.

a = -1, b = 2