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Popular >

simplify (-2x^2)^2

Solution

simplify

(- 2 x^{2})^{2}

Solution

4 x^{4}

Solution steps

(- 2 x^{2})^{2}

Apply exponent rule:

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

if

n

is even

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

= (2 x^{2})^{2}

Apply exponent rule:

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

(2 x^{2})^{2} = 2^{2} (x^{2})^{2}

= 2^{2} (x^{2})^{2}

2^{2} = 4

= 4 (x^{2})^{2}

Apply exponent rule:

(a^{b})^{c} = a^{b c},

assuming

a \geq 0

(x^{2})^{2} = x^{2 \cdot 2}

= 4 x^{2 \cdot 2}

Multiply the numbers:

2 \cdot 2 = 4

= 4 x^{4}

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Frequently Asked Questions (FAQ)

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