Algebra Chapter 12

Which is equivalent to (6x⁵)(3x⁴) ?

• 2x
• 9x⁹
• 18x⁹
• 18x²⁰

Which is equivalent to (5x² + 4x  + 1) + (-7x + 2) ?

• -2x² + 6x + 1
• 5x² – 3x – 1 
• 5x² – 3x + 3
• 5x² + 11x + 3

Which is equivalent to   (3m + 6n – 5) – (2m – 3n + 6) ?

• m – 3n + 1
• m – 3n + 1
• m + 9n – 11
• -5m – 9n – 11

Which is equivalent to (18x⁴ – 6x³ + 7x – 6 ) – (4x⁴ + 6x² – 6x + 15) ?

• -21x⁹
• 15x⁹ – 21 
• 12x⁴ + x + 9
• 14x⁴ – 6x ³ – 6x² + 13x – 21 

Which is equivalent to (10x + 12y)² ?

• 10x² + 12y²
• 100x² + 120xy + 144y²
• 100x² + 144y²
• 100x² + 240xy + 144y²

Which is equivalent to (y – 12)(y + 12) ?

• y² – 144
• y² + 144
• y² – 24y – 144
• y² + 24y – 144 

Which is equivalent to (7x – 2)(3x + 4) ?

• 10x² + 6x + 2
• 21x² – 8
• 21x² + 22x – 8 
• 21x² + 28x – 2 

Which is equivalent to   (7g + 8h – 9) + (-g – 3h – 6k)?

• 6g + 5h – 15k
• 6g + 5h – 6k – 9
• -7 – 2h + 54k
• 8g + 11h + 6k 

Which is equivalent to (5x² + 17x – 14 ) + (-3x² – 8x + 6) ?

• 2x² + 9x – 8
• 2x⁴ + 9x² – 8
• 8x² + 25x + 20
• -15x² – 136x – 84 

Which is equivalent to (x – 6)(3x – 4) ?

• 3x² – 24

• 3x² + 24

• 3x² -22x + 24

• 3x² + 14x – 24