Read e-book online The Complete Idiot's Guide to Algebra, 2nd Edition PDF

By W. Michael Kelley

ISBN-10: 1101460792

ISBN-13: 9781101460795

Just the proof (and figures) to knowing algebra.

The entire Idiot’s consultant® to Algebra has been up-to-date to incorporate easier-to-read graphs and extra perform difficulties. It covers diversifications of normal difficulties that may support scholars with their algebra classes, besides all of the uncomplicated innovations, together with linear equations and inequalities, polynomials, exponents and logarithms, conic sections, discrete math, be aware difficulties and more.
—Written in an easy-to-comprehend variety to make math ideas approachable
—Award-winning math instructor and writer of The whole Idiot’s consultant® to Calculus and the bestselling complicated placement ebook in ARCO’s “Master” sequence

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Additional resources for The Complete Idiot's Guide to Algebra, 2nd Edition

Example text

The answer he expected, of course, was -4. However, the first student to raise his hand answered unexpectedly. ” Keep in mind that this was a college senior, and you can begin to understand the despair felt by the professor. It’s hard to learn high-level statistics when a student doesn’t understand basic algebra. Here’s some advice: don’t think in terms of apples, as tasty as they may be. Instead, think in terms of earning and losing money—that’s something everyone can relate to, and it makes adding and subtracting positive and negative numbers a snap.

Other grouping symbols include (parentheses), [brackets], and {braces}. These symbols surround portions of a math problem, and whatever appears inside the symbols is considered grouped together. Critical Point Technically, a fraction bar is also a grouping symbol, because it separates a fraction into two groups, the numerator and denominator. Therefore, you should simplify the two parts separately at the beginning of the problem. Grouping symbols are important because they help you decide what to do first.

Critical Point The answer to 3(a) can be written three different ways, all of which are correct: , , or . The same goes for any negative fraction; all of those forms are equivalent. Example 3: Combine the fractions as indicated and express the answer in simplest form. a. Solution: Even though one of these fractions is improper, you don’t do anything differently. Start by rewriting the fractions with the least common denominator 12. Subtract the numerators and write the result over the common denominator.

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The Complete Idiot's Guide to Algebra, 2nd Edition by W. Michael Kelley

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