Order of Operations, Algebraic Expressions

2x + 3 + x²; for x = 4

• 17

• 27

• 19

• 25

8y + 12 - 2z
for y = 4 and z = 2

• 40

• 20

• 84

• 34

Evaluate when x = 2 and y = 5:

2 + (12 - 5x) ⋅ 2y

• 22

• 40

• 142

• -86

Simplify:
[25-(13+4)+4] ÷ 3

• 6

• 2

• 3

• 4

Solve the following:
(2 + 7 - 1) ÷ 2²

• 16

• 2

• 72.25

• 8.75

18 + (6 – 2) × 2

• 26

• 29

• 44

• 40

15 + 7 × 2 – 11 + 35=

• 38

• 251

• 53

• 50

x² - xy if x = 8 and y = -3

• 88

• 40

• -8

• -24

(18 - ab) + 4b if a = -2 and b = -5

• 8

• 28

• 48

• -12

When solving expressions with series of operations, which of the following is correct?

• Add and subtract from right to left

• Multiply and divide from left to right

• Add and multiply from left to right

• Subtract and divide from right to left