Question

xsquare-x+2=0then alpha+beta+3alpha beta is​

Answer 1

Here I am using alpha as A and beta as B

x2-x+2=0

a=1,b=-1,c=2

A+B=-b/a

=-(-1)/1

=1

AB= c/a

=2/1

=2

A+B+3AB

=1+3(2)

=1+6

=7

HOPE IT HELPED MARK AS BRAINLIEST