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 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
 2-D Shapes Areas Pythagorean Theorem Distances
 Graphs Definition of slope Positive or negative slope Determine slope of a line Ecuación de una recta Equation of a line (from graph) Quadratic function Posición relativa de dos rectas Asymptotes Limits Distancias Continuity and discontinuities
 Sine Cosine Tangent Cosecant Secant Cotangent Trigonometric identities Law of cosines Law of sines
 Ecuación de una recta Posición relativa de dos rectas Distancias Angles in space Inner product

 Applications of quadratic equations Suppose a rectangle has an area of 90m2 and the sides are x+1 and x+2. Find the dimensions of the rectangle. (x+1)·(x+2)=90 x2+3x+2=90 x2+3x-88=0 (x+11)·(x-8)=0 x+11=0; x=-11 x-8=0; x=8 The sides are 9m and 10m long. A person spent 360 euros to buy several objects. If each object had been  4 cheaper he or she could have bought 3more. How many object does he or she buy? What is the price of each object? He or she buys objects at euros each.