Structure in expressions — Harder example
Watch Sal work through a problem involving substitution and factoring a perfect square quadratic in two variables.
S
Salman Khan
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All Lessons in Passport to Advanced Math
1 Solving quadratic equations Basic example
2 Solving quadratic equations | Harder example
3 Interpreting nonlinear expressions — Basic example
4 Interpreting nonlinear expressions — Harder example
5 Quadratic and exponential word problems — Basic example
6 Quadratic and exponential word problems — Harder example
7 Manipulating quadratic and exponential expressions — Basic example
8 Manipulating quadratic and exponential expressions — Harder example
9 Radical and rational exponents — Basic example
10 Radicals and rational exponents — Harder example
11 Radical and rational equations — Basic example
12 Radical and rational equations — Harder example
13 Operations with rational expressions — Basic example
14 Operations with rational expressions — Harder example
15 Operations with polynomials — Basic example
16 Operations with polynomials — Harder example
17 Polynomial factors and graphs — Basic example
18 Polynomial factors and graphs — Harder example
19 Nonlinear equation graphs — Basic example
20 Nonlinear equation graphs — Harder example
21 Linear and quadratic systems — Basic example
22 Linear and quadratic systems — Harder example
23 Structure in expressions — Basic example
24 Structure in expressions — Harder example
25 Isolating quantities — Basic example
26 Isolating quantities — Harder example
27 Function notation — Basic example
28 Function notation — Harder example