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Solve each equation. Check your solutions.$$1-\frac{3}{x}-\frac{28}{x^{2}}=0$$

$\{-4,7\}$

Precalculus

Algebra

Chapter 11

Quadratic Equations, Inequalities, and Functions

Section 4

Equations Quadratic in Form

Introduction to Conic Sections

Equations and Inequalities

Functions

Polynomials

Missouri State University

University of Michigan - Ann Arbor

Lectures

01:43

In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. An example is the function that relates each real number x to its square x^2. The output of a function f corresponding to an input x is denoted by f(x).

03:18

02:40

Solve each equation. Check…

04:32

01:32

01:19

Use the quadratic formula …

00:18

Solve each equation.$$…

01:01

03:02

Solve each quadratic equat…

01:59

Solve.$$x^{2}+3 x-28=0…

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Solve each equation for the indicated variable. (Leave $\pm$ in your answers…

00:41

Mulliply, if possible, using the product rule. Assume that all variables rep…

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Solve each equation by using the square root property. Simplify all radicals…

00:20

Choose the closest approximation of each square root.$\sqrt{123.5}$$…

00:49

Multiply.$$(6+7 i)(6-7 i)$$

00:47