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Introduction to Polynomials
Introduction to Polynomials — from OpenStax Prealgebra 2e.
Introduction to Polynomials
Expressions known as polynomials are used widely in algebra. Applications of these expressions are essential to many careers, including economists, engineers, and scientists. In this chapter, we will find out what polynomials are and how to manipulate them through basic mathematical operations.
Sasa Hakuna kifaa cha kupigia hesabu kinachoweza kufanya hesabu, lakini kifaa hicho kinaweza kutumiwa katika hesabu.
Ishara zinazotumiwa hapa
Vaa alama yoyote ya ufafanuzi kamili, picha, na maana ya kila herufi.
Maswali ambayo watu huuliza
What does it mean to solve an equation?
To find every value of the unknown that makes both sides equal. Each step is an operation applied to both sides that keeps the solution set the same, until the unknown stands alone.
Why do I sometimes get two answers?
A quadratic can cross the axis twice, so it can have two solutions. A degree-n polynomial has up to n. The graph shows where each one comes from.
How do I know whether to factor or use the quadratic formula?
Try factoring for a few seconds: look for two numbers that multiply to a·c and add to b. If nothing obvious appears, the discriminant b² − 4ac tells you how many real roots there are, and the formula finds them without guessing.
Sehemu za ukurasa huu zimebadilishwa kutoka kwa OpenStax Prealgebra 2e (CC BY-NC-SA 4.0). Tumekamatwa na kukosolewa tena hapa; makosa ni yetu.
Mengi zaidi katika Algebra
Linear equationsQuadratic equationsSystems of equationsInequalitiesFactoringExpandingSimplifying expressionsFunctions and graphsExponential and logarithmic equationsPolynomial equationsAbsolute value