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3 years ago

3 times a number is 54 less than the square of that number. Find the positive solution.

Mathematics

1 answer:

OlgaM077 [116]3 years ago

4 0

Answer:x=9

Step-by-step explanation:

To find the positive solution for this, then we will say;

Let the number be x

3x<x^2-54

x^2-3x-54<0

Then we are going to factorise

x^2-9x+6x-54=0

(x^2-9x)+(6x-54)=0

x(x-9)+6(x-9)=0

(x+6)(x-9)=0

Therefore, The positive solution for this is: x=9

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