Mix of Algebra 2 Formulas
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Sum of Complex Numbers
(a+bi) + (c+di) = (a+c)+ (b+d)i
Work problem
A times B all over A plus B
Complex Numbers
All numbers, a combination of a real and an imaginary numbers.
Solving Linear Systems for 3 variables
Solving Linear Systems with Three Variables : Choose any two of the equations and eliminate a variable. : Choose any other two equations and eliminate the same variable. : Solve the resulting system of two equations with two unknowns. : Back substitute and determine all of the coordinates.
Quadratic Equation
ax² + bx + c = 0, where a ≠ 0
Conjugates
the expressions a+√b and a-√b where a and b are rational numbers