1.

Find a^2+9/a^2=31 what is the value of a-3/a​

Answer»

ANSWER:

a^2+9/a^2=31

a^2+(3/a)^2=31

a^2+(3/a)^2-6=31-6             ADDING and SUBTRACTING 6 on both the SIDES

(a-3/a)^2=25

a-3/a=5

Therefore a-3/a=5



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