Answers

2016-03-04T10:46:05+05:30
9. ab (x2 + 1 ) + x (a2+b2)
= ab (x2) + ab + x ( a2 ) + x ( b2)
= xa ( bx + a ) + b ( a + bx)
= ( xa + b) ( bx + a )
ax + b = 0
x = -b/a
bx+ a =0
x = -a/b
10. a2 + b - ab + a
a ( a-1 ) - b ( a -1)
( a-b) ( a-1)
a-1 =0
a = 1
a - b = 0
a= b
b= 1 .
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