Question

X^2+16/x^2=57 find x-4/x

Answer 1

Answer:

Subtract 5757 from both sides of the equation

x2-16x=-57x2-16x-57

To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of bb.

(62)2=(-8)2(62)2=(-8)2

Add the term to each side of the equation.

x2-16x+(-8)2=-57+(-8)2

hope it helps

Step-by-step explanation:

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