Grade 11Algebra
Please post the solution of third question from the above image.
Please post the solution of third question from the above image.
2 Answers
Arun
Dear student
May be its other methods also. But it can also be solved by expanding
As it will be a simple bi-quadratic equation.
Hope it helps
Regards
Arun
Aditya Gupta
(x^2-6x)^2= 81+2(x-3)^2
(x^2-6x)^2-9^2= 2(x-3)^2
(x^2-6x+9)(x^2-6x-9)= 2(x^2-6x+9)
So x=3 or x^2-6x-11=0 which you can easily find the roots by using quadratic formula
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