Question

The value of $(-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)$ is ________.

• A. $2(8{)}^5$
• B. $(2{)}^{30}$
• C. $(4{)}^8$
• D. All of these

Answer 1

Answer: (B)

$(2{)}^{30}$

$(-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)$

$\Rightarrow$ $(8{)}^{10}$

$\Rightarrow$ $(2^3{)}^{10}$

$\Rightarrow$ $(2{)}^{30}$

$\therefore$ $(-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)\times (-8)=(2{)}^{30}$