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kifflom [539]
2 years ago
14

7 times a number is 8 less than the square of that number. Find the negative solution.

Mathematics
1 answer:
charle [14.2K]2 years ago
7 0

Answer:

  -1

Step-by-step explanation:

The required relation is ...

  7n = n^2 -8

  0 = n^2 -7n -8 . . . . put in standard form

  0 = (n -8)(n +1) . . . . factor

Solutions are n=8 and n=-1.

The negative solution is -1.

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there are two congruence criteria that do not guarantee congruence:

AAA ( or 3 angles)

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SSA (side-side-angle)

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This is kinda harder to illustrate;  

think on a triangle rectangle where you have the measure of both cathetus and one of the angles different from 90° as the SSA data.

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