قراءة كتاب A Review of Algebra

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A Review of Algebra

A Review of Algebra

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دار النشر: Project Gutenberg
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and subtraction of fractions.

Multiplication and division of fractions.

Law of signs in division, changing signs of factors, etc.

Complex fractions.

Simultaneous Equations

Solved by

  • addition or subtraction.
  • substitution.
  • comparison.

Graphical representation.

Involution

Law of signs.

Binomial theorem laws.

Expansion of

  • monomials and fractions.
  • binomials.
  • trinomials.

Evolution

Law of signs.

Evolution of monomials and fractions.

Square root of algebraic expressions.

Square root of arithmetical numbers.

Optional

  • Cube root of algebraic expressions.
  • Cube root of arithmetical numbers.

Theory of Exponents

Proofs:

Meaning of

  • fractional exponent.
  • zero exponent.
  • negative exponent.

Four rules

  • To multiply quantities having the same base, add exponents.
  • To divide quantities having the same base, subtract exponents.
  • To raise to a power, multiply exponents.
  • To extract a root, divide the exponent of the power by the index of the root.

Radicals

Radical in its simplest form.

Transformation of radicals

  • Fraction under the radical sign.
  • Reduction to an entire surd.
  • Changing to surds of different order.
  • Reduction to simplest form.

Addition and subtraction of radicals.

Multiplication and division of radicals

Rationalization

  • Monomial denominator.
  • Binomial denominator.
  • Trinomial denominator.

Square root of a binomial surd.

Radical equations. Always check results to avoid extraneous roots.

Quadratic Equations

Pure.

Affected.

Methods of solving

  • Completing the square.
  • Formula. Developed from
  • Factoring.

Equations in the quadratic form.

Properties of quadratics




  • Then
  • Discriminant, and its discussion.
  • Nature or character of the roots.

Simultaneous Quadratics

Case I.

One equation linear.

The other quadratic.

Case II.

Both equations homogeneous and of the second degree.

Case III.

Any two of the quantities etc., given.

Case IV.

Both equations symmetrical or symmetrical except for sign. Usually one equation of high degree, the other of the first degree.

Case V. Special Devices

I. Solve for a compound unknown, like etc., first.

II. Divide the equations, member by member.

III. Eliminate the quadratic terms.

Ratio and Proportion

Proportionals

  • mean,
  • third,
  • fourth.

Theorems

  1. Product

Pages