Dorth3859 Dorth3859

14-02-2020
Mathematics

contestada

Solve the following equation by making an appropriate substitution. x Superscript negative 2 Baseline minus 2 x Superscript negative 1 Baseline minus 15 equals 0 Make an appropriate substitution and rewrite the equation in quadratic form. Let uequals xz-1 x Superscript negative 1, then the quadratic equation in u is u^2-2u-15(-5)(u+3) (u-5 )(u+3 ).

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sqdancefan sqdancefan

14-02-2020

Answer:

u^2-2u-15 = 0

Step-by-step explanation:

If you make the substitution ...

u equals x Superscript negative 1 Baseline

then you can rewrite the equation as shown above.

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