two square roots of the number?

Question

help??
49, 400, 121, 225, 3600, and 576

Answer 1

7, -7
find the square roots for all those numbers and their negative form too.

Answer 2

OK Let's see

Well you probably know

49 = 7^2 but it can also be -7^2. SO that's the key. So I will place the two numbers next to the item to show you.

49 = (7,-7)
400 = (20, -20)
121 = (11, -11)
225 = (15, -15)
3600 = (60, -60)
576 = (24, -24)

Hope this helps.

Answer 3

49= 7,
400=20,
121=11,
225=15,
3600=60, and
576=24

Answer 4

Each positive number has 2 square roots, one positive and one negative. For example 7X7 gives you 49, but so does -7X-7;therefore the square roots for 49 would be positive and negative 7.

49: 7 and -7

400: 20 and -20

121: 11 and -11

225: 15 and -15

3600: 60 and -60

576: 24 and -24

This is usually written with a "plus and minus sign" which is a plus sign placed on top of a minus sign.

This technique does not work for square roots of negative numbers, for those give you answers 'i" and is a more complicated form of math

Answer 5

well i assume these are the correct answers:

49= 7 and -7 (since -7 x -7 =49)
400= 20 and -20
121= 11 and -11
225= 25 and -25
3600= 60 and -60
576= 24 and -24

Answer 6

49=7,-7
400=20,-20
121=11,-11
225=15,-15
3600=60,-60
576= 24,-24
just so you know when you take a square root of a number the answer will be +/- because 2 negatives times each other comes out positive.

Answer 7

Sure. The positive square root, and the negative square root.

7 x 7 = 49
(-7) x (-7) = 49

Remember, a negative times a negative is a positive.
.

Answer 8

Remember every positive number has 2 square roots, a positive and a negative.
49 7 positive and negative
400 20
121 11
225 15
3600 60
576 24

You should check this by hand, tables or calculator

Answer 9

use a calculator :

49 inv x^2 = 7

200 inv x^2 = 20

etc.

Answer 10

49-+/-7;
400-+/-20;
121-+/-11;
3600-+/-60;
576-+/-24. ANs.