Question

If x+(1)/(x)=-3 then the value of x^(8)+3x^(7)+x^(6)+5 is​

Answer 1

Refer To The Attachment !

The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Answer 2

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There are 3 values for x:

If you take it as (x+1)/x = 3, then

x+1 = 3x, or

2x = 1, or

x = 0.5

Check: (0.5+1)/0.5 = 3. Correct

If you take it as x + (1/x) = 3, then

x^2–3x+1 = 0

x1 = [3+(9-4)^0.5]/2 = [3+5^0.5]/2 = 2.618033989.

x2 = [3-(9-4)^0.5]/2 = [3–5^0.5]/2 = 0.381966011.

Check: x1+(1/x1) = 2.618033989+(1/2.618033989) = 3. Correct.

x2+(1/x2) = 0.381966011+(1/0.381966011) = 3. Correct.

x1 = 2.618033989.

x2 = 0.381966011.