PEMDAS
Evaluate: 2 + 3 × 4
14
Add: 1/2 + 1/4
3/4
Simplify: x³ · x⁴
x⁷
Factor completely: x² − 9
(x − 3)(x + 3)
What is often called the 'powerhouse of the cell'?
Mitochondria
Evaluate: (6 + 2) × 3 − 4
20
3/5 − 1/10
1/2
Simplify: (x⁵)²
x¹⁰
Factor completely: x² + 5x + 6
(x + 2)(x + 3)
What gas do plants absorb from the atmosphere for photosynthesis?
Carbon dioxide (CO₂)
5 + 2² × 3 − 8 ÷ 2
13
Multiply: 2/3 × 3/4
1/2
Simplify: x⁸ ÷ x³
x⁵
Simplify: (2x + 1)(x + 3)
2x² + 7x + 3
What is the chemical symbol for gold?
Au
3 × (4 + 2)² ÷ 6 − 5
13
Divide: 5/6 ÷ 2/3
5/4 (or 1 1/4)
Simplify: (2x³y²)³
8x⁹y⁶
Simplify: (x − 2)(x² + 2x + 4)
x³ − 8
What type of chemical bond involves the sharing of electron pairs between atoms?
Covalent bond
[(9 − 3)² + 4 × 3] ÷ 6 − 2
6
(1/2 + 2/3) ÷ (3/4 − 1/6)
2
Simplify: (x⁻²y³)⁻¹ · (x⁴y⁻¹)²
x¹⁰/y⁵ (x¹⁰y⁻⁵)
Simplify: x²(2x − 5)(2x + 5)
4x⁴ − 25x²
What is the pH value of a neutral solution at 25°C?
7