Question

Finding all square roots of a number Find all real square roots of 49. If there is more than one answer, separate them with commas.

Answer 1

The real square roots of 49 are +7 and -7, as both numbers squared equal 49.

Step-by-step explanation:

The real square roots of 49 are the numbers that, when multiplied by themselves, will equal 49. In general, a positive number has two real square roots, one positive and one negative. To find the square roots of 49, you can recall that 49 is a perfect square and is actually 7 squared (7²). Therefore, the positive square root of 49 is +7. However, we also know that (-7) × (-7) also equals 49, which gives us the negative square root. Therefore, the two real square roots of 49 are +7 and -7, separated by a comma as requested.