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Popular >

simplify 7sqrt(40)

Solution

simplify

740

Solution

1410

+1

Decimal Notation

44.27188 \dots

Solution steps

740

Prime factorization of

40 : 2^{3} \cdot 5

= 7 2^{3} \cdot 5

Apply exponent rule:

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

2^{3} \cdot 5 = 2^{2} \cdot 2 \cdot 5

= 7 2^{2} \cdot 2 \cdot 5

Apply radical rule:

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

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

= 7 2^{2} 2 \cdot 5

Apply radical rule:

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

2^{2} = 2

= 7 \cdot 2 2 \cdot 5

Multiply the numbers:

2 \cdot 5 = 10

= 7 \cdot 210

Multiply the numbers:

7 \cdot 2 = 14

= 1410

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Frequently Asked Questions (FAQ)

What is 7sqrt(40) ?
The solution to 7sqrt(40) is 14sqrt(10)