Evaluate 2√283√63-√49

sqtot = 2

We have a product of 2 square root terms

The product of square roots is equal to the square root of the products

2√283√63 = 2√28*63

2√283√63 = 2√1764

Simplify 2√1764.

If you use a guess and check method, you see that 41

Since 1681 < 1764 < 1849 the next logical step would be checking 42

42

42

Multiplying by our outside constant, we get 2 x 42 = 84

Therefore, 2√1764 =

Simplify -1√49.

If you use a guess and check method, you see that 6

Since 36 < 49 < 64 the next logical step would be checking 7

7

7

Multiplying by our outside constant, we get -1 x 7 = -7

Therefore, -1√49 =

84 - 7 = 77