Review

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

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11

• 11x + 11

• 16x² - 5x + 11

• 10x²

• Can't be simplified

Simplify: 8x² + 5x + 2y + x

• 14x + 2y

• 13x²+ 2y + x

• 8x² + 6x + 2y

• 8x² + 7xy + x

Like terms have the same _____ and the same _____.

• variables and numbers

• signs and numbers

• variables and exponents

• variables and signs

A constant term has ______.

• no exponents

• no variables

• no numbers

• no letters

A coefficient is __________.

• the variable

• a constant

• an exponent

• the number that comes before the variable

Expand and simplify 4(7x + 3).

• 28x + 12

• 28x + 3

• 47x + 12

• 47x + 3

Expand and simplify 3(c - 2d) - 2(2c - 3d).

• -c

• c

• -c - 12d

• -c + 12d

• 15