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Popular >

simplify sqrt(4^2+2^2)

Solution

simplify

4^{2} + 2^{2}

Solution

25

+1

Decimal Notation

4.47213 \dots

Solution steps

4^{2} + 2^{2}

4^{2} + 2^{2} = 20

= 20

Prime factorization of

20 : 2^{2} \cdot 5

= 2^{2} \cdot 5

Apply radical rule:

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

2^{2} \cdot 5 = 2^{2} 5

= 2^{2} 5

Apply radical rule:

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

2^{2} = 2

= 25

Popular Examples

factor 11x^3+125x^2+45x+11 factor

11 x^{3} + 125 x^{2} + 45 x + 11

factor 4x^3-x factor

4 x^{3} - x

simplify 4/(5-2i)simplify

\frac{4}{5 - 2 i}

-3(2a-3)+2=3(a+7)

- 3 (2 a - 3) + 2 = 3 (a + 7)

simplify (1+3i)/(3+i)simplify

\frac{1 + 3 i}{3 + i}

Frequently Asked Questions (FAQ)

What is sqrt(4^2+2^2) ?
The solution to sqrt(4^2+2^2) is 2sqrt(5)