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  2. Elementary algebra - Wikipedia

    en.wikipedia.org/wiki/Elementary_algebra

    For example, taking the statement x + 1 = 0, if x is substituted with 1, this implies 1 + 1 = 2 = 0, which is false, which implies that if x + 1 = 0 then x cannot be 1. If x and y are integers , rationals , or real numbers , then xy = 0 implies x = 0 or y = 0 .

  3. Polynomial expansion - Wikipedia

    en.wikipedia.org/wiki/Polynomial_expansion

    In mathematics, an expansion of a product of sums expresses it as a sum of products by using the fact that multiplication distributes over addition. Expansion of a polynomial expression can be obtained by repeatedly replacing subexpressions that multiply two other subexpressions, at least one of which is an addition, by the equivalent sum of products, continuing until the expression becomes a ...

  4. Expression (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Expression_(mathematics)

    For example, 3x 2 − 2xy + c is an algebraic expression. Since taking the square root is the same as raising to the power ⁠ 1 / 2 ⁠, the following is also an algebraic expression: + See also: Algebraic equation and Algebraic closure

  5. Polynomial - Wikipedia

    en.wikipedia.org/wiki/Polynomial

    The polynomial 3x 25x + 4 is written in descending powers of x. The first term has coefficient 3, indeterminate x, and exponent 2. In the second term, the coefficient is −5. The third term is a constant. Because the degree of a non-zero polynomial is the largest degree of any one term, this polynomial has degree two. [11]

  6. Quadratic formula - Wikipedia

    en.wikipedia.org/wiki/Quadratic_formula

    The roots of the quadratic function y = ⁠ 1 / 2 ⁠ x 23x + ⁠ 5 / 2 ⁠ are the places where the graph intersects the x-axis, the values x = 1 and x = 5. They can be found via the quadratic formula. In elementary algebra, the quadratic formula is a closed-form expression describing the solutions of a quadratic equation.

  7. Experts: Trump's use of consumer fraud law to sue Des ... - AOL

    www.aol.com/experts-trumps-consumer-fraud-law...

    Iowa consumer law expert says lawsuit without precedent. Bill Brauch, a retired attorney who served as director of the Iowa attorney general's consumer protection division from 1995 to 2015, said ...

  8. 2024 NFL Week 15: Sunday’s standout games and what to look ...

    www.aol.com/sports/2024-nfl-week-15-sunday...

    Week 15 of the 2024 NFL season sees four games between teams currently in the playoff positions, with all four taking place on Sunday.

  9. Synthetic division - Wikipedia

    en.wikipedia.org/wiki/Synthetic_division

    Animation showing the use of synthetic division to find the quotient of + + + by .Note that there is no term in , so the fourth column from the right contains a zero.. In algebra, synthetic division is a method for manually performing Euclidean division of polynomials, with less writing and fewer calculations than long division.