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A*a-4a-1=0,find the value of a*a+1/a*a+3a-3/a​

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Answer:

Step-by-step EXPLANATION:

The answer can be found very quickly.

a2-4a-1=0; Let us divide both sides by a. Since we are to FIND a-1/a, a≠0, otherwise the EXPRESSION a-1/a is not defined at all. After the abovementioned division by a we will obtain:

a-4-1/a=0; Now combine first and LAST term TOGETHER, (a-1/a)-4=0. Move 4 to the right, to obtain

a-1/a=4

This is your answer. Done.

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