Grade 9 · Number
Powers and Exponent Laws
Exponent laws are shorthand for repeated patterns. x⁵ × x³ = x⁸ because five factors times three factors is eight factors total. Negative exponents express reciprocals (x⁻³ = 1/x³), and zero exponents always give 1. Scientific notation puts these laws to immediate use in handling very large and very small quantities.
LESSON VIDEO
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Lesson video
A short walkthrough to play in class or assign for flipped/at-home viewing.
WHAT STUDENTS WILL LEARN
✓Apply product, quotient, and power laws for exponents
✓Evaluate expressions with zero and negative exponents
✓Convert between scientific notation and standard form
✓Simplify expressions involving integer exponents