What is sqrt(8)+sqrt(8) ?

The solution to sqrt(8)+sqrt(8) is 4sqrt(2)

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simplify sqrt(8)+sqrt(8)

simplify

8 + 8

42

Decimal Notation

5.65685 \dots

Solution steps

8 + 8

Add similar elements:

8 + 8 = 28

= 28

Prime factorization of

8 : 2^{3}

= 2 2^{3}

Apply exponent rule:

a^{b + c} = a^{b} \cdot a^{c}

2^{3} = 2^{2} \cdot 2

= 2 2^{2} \cdot 2

Apply radical rule:

ab = a b, a \geq 0, b \geq 0

2^{2} \cdot 2 = 2^{2} 2

= 2 2^{2} 2

Apply radical rule:

a^{2} = a, a \geq 0

2^{2} = 2

= 2 \cdot 22

Multiply the numbers:

2 \cdot 2 = 4

= 42

h = \frac{145}{( 2 \frac{1}{57 1 ^{2}} - \frac{1}{125 0 ^{2}} )}

15 - [- 3 x + (8 x - 2)] = 7

(\frac{y}{5 x ^{- 2}})^{- 3}

12 + 6

m^{2} + 2 m + 2 = 0