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Wittaler [7]
2 years ago
12

When I square my number, I get the same answer as when I multiply my number by 10 and then add 144. My number is positive. What

is it?
Mathematics
1 answer:
exis [7]2 years ago
8 0

Answer:

your number is 18

Step-by-step explanation:

x^2 = (x × 10 ) + 144

x^2 = 10x + 144

x^2 - 10x - 144 = 0

using quadratic method

your answer should be

(x- 18) ( x+8 )

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The money would be multiplied by a factor of 16 after 28 years

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The rate is given as:

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