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Popular >

simplify (-2x^3)^3

Solution

simplify

(- 2 x^{3})^{3}

Solution

- 8 x^{9}

Solution steps

(- 2 x^{3})^{3}

Apply exponent rule:

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

if

n

is odd

(- 2 x^{3})^{3} = - (2 x^{3})^{3}

= - (2 x^{3})^{3}

Apply exponent rule:

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

(2 x^{3})^{3} = 2^{3} (x^{3})^{3}

= - 2^{3} (x^{3})^{3}

2^{3} = 8

= - 8 (x^{3})^{3}

Apply exponent rule:

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

assuming

a \geq 0

(x^{3})^{3} = x^{3 \cdot 3}

= - 8 x^{3 \cdot 3}

Multiply the numbers:

3 \cdot 3 = 9

= - 8 x^{9}

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Frequently Asked Questions (FAQ)

What is (-2x^3)^3 ?
The solution to (-2x^3)^3 is -8x^9