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Popular >

simplify (-2sqrt(5))^2

Solution

simplify

(- 25)^{2}

Solution

20

Solution steps

(- 25)^{2}

Apply exponent rule:

(- a)^{n} = a^{n},

if

n

is even

(- 25)^{2} = (25)^{2}

= (25)^{2}

Apply exponent rule:

(a \cdot b)^{n} = a^{n} b^{n}

(25)^{2} = 2^{2} (5)^{2}

= 2^{2} (5)^{2}

2^{2} = 4

= 4 (5)^{2}

(5)^{2} = 5

= 4 \cdot 5

Multiply the numbers:

4 \cdot 5 = 20

= 20

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15=sqrt(3)*1/2 s

15 = 3 \cdot \frac{1}{2} s

Frequently Asked Questions (FAQ)

What is (-2sqrt(5))^2 ?
The solution to (-2sqrt(5))^2 is 20