Curriculum
Mathematics — Second Preparatory
Unit 1: Real Numbers
0/10
-
Real Numbers
Preview -
Real Numbers — Lesson quiz
Preview -
Intervals and Operations on Them
Preview
-
Intervals and Operations on Them — Lesson quiz
Preview
-
Operations on Real Numbers
Preview
-
Operations on Real Numbers — Lesson quiz
Preview
-
Square and Cube Root Laws
Preview
-
Square and Cube Root Laws — Lesson quiz
Preview
-
Laws of Exponents
Preview
-
Laws of Exponents — Lesson quiz
Preview
Unit 2: Algebra
0/8
Unit 3: Geometry
0/12
Unit 4: Statistics
0/4
Text lesson
Laws of Exponents
Laws of Exponents
Common mistakes
Common mistakes
- Multiplying the exponents when multiplying powers. Writing 23 × 24 = 47 is wrong; the correct value is 27.
- Confusing the base with the exponent. Writing 23 = 6 is wrong; the correct value is 8.
- Treating a negative exponent as a negative number. Writing 2−3 = −8 is wrong; the correct value is 1/8.
- Writing (a + b)n = an + bn. For example, (2 + 3)2 = 25, not 4 + 9 = 13.
Laws of Exponents · 6 / 7