Equivalent expressions

Simplify
14(b – 10).

• 4b
• b – 140
• 14b – 140
• 14b – 10

Which expression is equivalent to 3a² + 6a + 5a²?

• 14a²
• 14a
• 8a² + 6a
• 3a² + 11a

Which expression is equivalent to z + z² + 1?

• 3z
• 1 + z + z²
• 2z + 1
• 2z² + 1

What is the simplest form of this expression
4x-6a+5a-2x

• 2x-1a
• 21xa
• 6x+11a

What is the value of 9³?

• 93

• 81

• 27

• 729

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Multiply and Simplify: (x + 2)(x + 5)

• $x^2+7x+10$

• $x^2+7x-5$

• $x^2+5x+7$

• $x^2-5x+7$

Simplify: (7x)³

• 7x³

• 343x²

• 49x²

• 343x³

What is (x + 6)²

• x² + 12x + 12

• x² + 12x + 36

• 2x² + 12x +36

• x² + 36

Which expression is a equivalent to

x² + 9x - 36

• (x + 12)(x - 3)

• (x + 9)(x - 4)

• (x - 12)(x + 3)

• (x - 9)(x - 4)