Answer:
=
Step-by-step explanation:
find a square factor in the digit inside
( 2 squared = 4
3 squared = 9
4 squared = 16
5squared = 25, and so on)
in this case, 84 can be divided by 4
84 = 4 x 21 right?
in this we can now separate the factors,
1.9 x x
and = 2
so 1.9 x 2 x
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Answers & Comments
Answer:
Step-by-step explanation:
find a square factor in the digit inside
( 2 squared = 4
3 squared = 9
4 squared = 16
5squared = 25, and so on)
in this case, 84 can be divided by 4
84 = 4 x 21 right?
in this we can now separate the factors,
1.9 x
x ![\sqrt{21} \sqrt{21}](https://tex.z-dn.net/?f=%20%5Csqrt%7B21%7D%20)
and
= 2
so 1.9 x 2 x![\sqrt{21} \sqrt{21}](https://tex.z-dn.net/?f=%20%5Csqrt%7B21%7D%20)
=![3.8\sqrt{21} 3.8\sqrt{21}](https://tex.z-dn.net/?f=%203.8%5Csqrt%7B21%7D%20)