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Earn +20 ptsQ: What are positive and negative square roots of 225?
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Is the square root of 225 an integer?
Yes; the square root of 225 is both a positive and a negative 15. Therefore, the square root of 225 is an integer.
What are the two square roots of 225?
15 and -15
Is 225 a square?
Technically, every positive number is a square in the real number system, but I assume you mean perfect square. And yes, 225 is a perfect square. 152 = 225
Why are all square roots not irrational numbers?
Because some of them are squares of rational numbers. So their square roots are the rational numbers.Thus if x is rational, then the square roots of x2, which are -x and +x are both rational.
What is the nature of the roots of 4x2 plus 15x plus 10 equals 0?
The discriminant of the equation ... (b2-4ac) = (225-160) ... is real and positive, so the roots are real and unequal.
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