Algebra 1B — Systems, Exponents & Factoring
Part 2 of 2. Systems of equations by elimination, the three exponent rules, and factoring with the zero-product rule.
Part 2 of 2 of Algebra 1. Same balancing move as part 1A — now with two unknowns at once, a tidy set of exponent shortcuts, and the factoring trick that cracks quadratics.
- 01 Systems of equations ELI5: one equation with two unknowns has infinitely many answers — but two equations pin down a single (x, y). Elimination is the cleanest by-hand method: line…
- 02 Exponent rules ELI5: exponents are repeated multiplication, and three rules cover almost everything: Product: aᵐ · aⁿ = aᵐ⁺ⁿ — multiplying adds the exponents. Power: (aᵐ)ⁿ =…
- 03 Factoring & the zero-product rule ELI5: factoring rewrites a sum as a product — and that unlocks the zero-product rule: if A·B = 0, then A = 0 or B = 0. So a quadratic set to zero splits into…
next course: Algebra 2A — Functions & Quadratics →