Question

x2-7x-3=0,find x2+9/x2

Answer 1

ANSWER:-

GIVEN:

__________

2x -7x- 3=0

TO FIND:

____________

2x+9/2x

SOLUTION:-

________________

As per the question,2x-7x-3=0

=> -5x-3=0

=>5x= -3

=>x= -3/5

By putting the value of x in 2x+9/2x ,we get:

2x+9/2x=(4x+9)/2x

=[4(-3/5)+9]/2(-3/5)

=[(-12/5)+9]/(-6/5)

=[-12+45/5]/(-6/5)

=( -33/5)/(-6/5)

=33/6

=5.5

-----××GAME CHANGER××------