8th Grade Term 1 Review

Simplify the expression: 
c⁴⋅c³=

• ^c12
• c⁴⁺³
• c⁷

Simplify the expression: 3x²⋅x²=

• 3x
• 3x²⁺²
• 3x⁴

(2⁸)²

• 2¹⁶
• 2¹⁰
• 2⁶
• 2⁴

x^-3

• -x³

• 1 / x³

• 1 / x^-3

• -x^-3

Anything raised to a power of zero is always: 

• 0
• 1
• itself
• negative

Solve.

 $6a\ +\ 5a\ =\ -11$  

•  $a\ =\ 0$  

•  $a\ =\ 1$  

•  $a\ =\ -1$  

• None of these

 $4x\ +\ 6\ +\ 3\ =\ 17$  

•  $x\ =\ 6.5$  

•  $x\ =\ -6.5$  

•  $x\ =\ -2$  

•  $x\ =2$  

 $24\ =\ 3\left(3x\ -7\right)$ 

•  $x\ =\ -9$  

•  $x\ =\ 5$  

•  $x\ =3$  

•  $x\ =\ 7$  

Change from standard form to scientific notation: 12,000,000

• 12.0  x  10⁷
• 0.12  x  10⁷
• 1.2  x  10⁶
• 1.2  x  10⁷

Try to change the number back to standard form:  6.79  x  10⁴

• 679,000
• 6,790
• 67,900
• 6,790,000