Evaluating Expressions

6a - 3d
when a = 1, d = 2

• 3
• 12
• 1
• 0

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4

2x + 3 + x²; for x = 4

• 17
• 27
• 19
• 25

Evaluate when x = 2 and y = 5:

2 + (12 - 5x) ⋅ 2y

• 22

• 40

• 142

• -86

c² + a; for a = 9 and c = 10

• 109
• 29