Square Root Of 4 In Simplest Radical Form

Simplify the square root of 4 to its lowest radical form.

ANSWER: 2√1

2√1 is in the lowest radical form.

Simplified Radical Form of √4

One of the main facts used to simplify square roots is that the square root of a product is equal to the product of square roots: √(x×y) = √x×√y

Explanation:

When we find square root of any number, we take one number from each pair of the same numbers from its prime factorization and we multiply them.

Step 1: List Factors

To simplify √4, we need to divide into factors.

√4 = √2 x √2

Step 2: List Perfect Squares

1 is a perfect square and divides 4
4 is a perfect square and divides 4

Step 3: Divide To Perfect Square

Divide 4 by the largest perfect square you found in the previous step:

Step 4: Calculate The Square Root

Calculate the square root of the largest perfect square:

Final Step :

Put Steps 3 and 4 together to get the square root of 4 in its simplest form: 2√1

How do you simplify √4

The general approach is to first check if it is a perfect square. If so, you have the answer. If it is not a perfect square, see if any of its factors are perfect squares, or can be combined to make square numbers.

Find the lowest prime number that can divide 4. Divide 4 repeatedly using the long division method till you reach 1.

A pair of factor 'twins' under a square root sign (radical) form a single factor outside of it.

Factors that do not have a twin remain under the radical. Multiply them back together and leave them in there.

So, the answer is 2√1.

Simplified Decimal Form of √4

The square root of 4 is approximately 2 when expressed in decimal form and you can find additive inverse of a decimal number.

Calculation Table:

Square Root Answer Calculation
√57 Square root of 57 is the simplest radical form. √3 x √19
√41 Square root of 41 is the simplest radical form. √41
√74 Square root of 74 is the simplest radical form. √2 x √37
√243 9√3 √3 x √3 x √3 x √3 x √3
√285 Square root of 285 is the simplest radical form. √3 x √5 x √19
√725 5√29 √5 x √5 x √29
√5843 Square root of 5843 is the simplest radical form. √5843
√1137 Square root of 1137 is the simplest radical form. √3 x √379
√2150 5√86 √2 x √5 x √5 x √43

Convert any root forms to simplest radical form.

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