plzzz solve this q fast..I have my xam
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Anonymous:
somebody plzzz solve...
don't worry
stud well for your exam
thanks..
welcome
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x2=1 then x=root of 1
then x=1
sub x in the value
x4+x2+8x2+ax+b=1+1+8+a+b
10+a+b=0------->1
b=-10-a--------->2
sub equation 2 in 1
10+a-10-a=0
a=0------>3
sub a in equation 1
10+0+b=0
b=-10
so, a=0;b=-10
then x=1
sub x in the value
x4+x2+8x2+ax+b=1+1+8+a+b
10+a+b=0------->1
b=-10-a--------->2
sub equation 2 in 1
10+a-10-a=0
a=0------>3
sub a in equation 1
10+0+b=0
b=-10
so, a=0;b=-10
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