A Complete Course in AlgebraLeach, Shewell, and Sanborn, 1885 |
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a²+2ab+b² a²b² a³b ab+b² ab² ab³ Adding Algebra arithmetical means arithmetical progression ax² ax³ binomial cents change the sign coefficient cologarithm Completing the square cube root decimal derive the formulæ digits dividend divisor EXAMPLES exponent expression Extracting the square Find the H.C.F. Find the value Find two numbers following equations following rule formula fraction geometrical progression Hence highest common factor last term less logarithm lowest common multiple mantissa monomial Multiplying Note number of terms parenthesis perfect square polynomial positive proportion QUADRATIC EQUATIONS quotient radical sign Reduce the following remainder Required the number result rods rule of Art second term simplest form Solve the equation Solve the following square root subtract third Transposing trial-divisor twice unknown quantity Whence
Δημοφιλή αποσπάσματα
Σελίδα 166 - Arts. 200 and 201 we derive the following rule : Extract the required root of the numerical coefficient, and divide the exponent of each letter by the index of the root.
Σελίδα 213 - In any trinomial square (Art. 108), the middle term is twice the product of the square roots of the first and third terms...
Σελίδα 44 - ... the product of the two, plus the square of the second. In the third case, we have (a + b) (a — 6) = a2 — b2. (3) That is, the product of the sum and difference of two quantities is equal to the difference of their squares.
Σελίδα 49 - The exponent of b in the second term is 1, and increases by 1 in each succeeding term.
Σελίδα 255 - The first and fourth terms of a proportion are called the extremes; and the second and third terms the means. Thus, in the proportion a : b = с : d, a and d are the extremes, and b and с the means.
Σελίδα 258 - In a series of equal ratios, any antecedent is to its consequent, as the sum of all the antecedents is to the sum of all the consequents. Let a: b = c: d = e:f.
Σελίδα 5 - If equal quantities be divided by the same quantity, or equal quantities, the quotients will be equal. 5. If the same quantity be both added to and subtracted from another, the value of the latter will not be changed.
Σελίδα 44 - The square of the sum of two quantities is equal to the SQuare of the first, plus twice the product of the first by the second, plus the square of the second.
Σελίδα 107 - Any term may be transposed from one side of an equation to the other by changing its sign. For, consider the equation x + a = b.
Σελίδα 227 - A' courier proceeds from P to Q in 14 hours. A second courier starts at the same time from a place 10 miles behind P, and arrives at Q at the same time as the first courier. The second courier finds that he takes half an hour less than the first to accomplish 20 miles. Find the distance from P to Q.