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Popular >

simplify (-a-a)^2

Solution

simplify

(- a - a)^{2}

Solution

4 a^{2}

Solution steps

(- a - a)^{2}

Add similar elements:

- a - a = - 2 a

= (- 2 a)^{2}

Apply exponent rule:

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

if

n

is even

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

= (2 a)^{2}

Apply exponent rule:

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

(2 a)^{2} = 2^{2} a^{2}

= 2^{2} a^{2}

2^{2} = 4

= 4 a^{2}

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Frequently Asked Questions (FAQ)

What is (-a-a)^2 ?
The solution to (-a-a)^2 is 4a^2