1.

. solve this please​

Answer»

LET 5x \frac{-1}{x}=y

SQUARING on both SIDES,

we GET,

\implies 5x\frac{-1}{x}^{2}=y^{2} \\ \implies y^{2}+5y+6 \\ \implies y^{2}+3y+2y+6 \\ \implies y(y+3)+2(y+3) \\ \implies(y+3),(y+2)

Now,

PUT y=5x\frac{-1}{x}

\implies [ 5x\frac{-1}{x}+3][5x\frac{-1}{x}×2]


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