Answer
[tex]=(5 g^4+5 g^3-17 g^2+6 g)-(3 g^4+6 g^4-7 g^2-\frac{12}{g}+2)[/tex]
Opening the brackets and adding and subtracting the like terms
[tex]=5 g^4+5 g^3-17 g^2+6 g-3 g^4-6 g^4+7 g^2+\frac{12}{g}-2\\\\ =5 g^4-9 g^4 +5 g^3-17 g^2+7 g^2+6 g +\frac{12}{g}-2\\\\ = -4 g^4 + 5 g^3 -10 g^2+6 g+\frac{12}{g}-2[/tex]
This is equivalent expression of the expression given.
[tex]= -4 g^4 + 5 g^3 -10 g^2+6 g+\frac{12}{g}-2[/tex]
