Across
- 5. square trinomial a quadratic expression that can be written as a perfect square of linear expression
- 8. an algebraic expression consisting of one or more terms in which each term is a number or a product of numbers and variables with whole-number exponents
- 10. to divide a monomial by another monomial with no remainder
- 11. coefficient the coefficient of the first term of a polynomial in standard form
- 12. the part of the quadratic formula that is under the square root
- 14. polynomial the polynomial with all its signs changed to their opposites
- 15. to replace a variable in an expression with a numerical value
- 17. formula the formula that can be used to solve any quadratic equation by substituting the coefficients of the equation x = -b ± √(b² - 4ac)/2a
- 20. by inspection determining the solution(s) of an equation simply by looking at the equation
- 21. common denominator (LCD) the least common multiple of two or more denominators
Down
- 1. an expression with only one term, such as 10, 2x, and 3xy
- 2. number a whole number greater than 1 that has exactly two factors (1 and itself)
- 3. two numbers or expressions whose product is 1
- 4. expression a ratio of two polynomials
- 6. the number that appears before a variable that multiplies the variable in an algebraic expression
- 7. the square a technique of manipulating quadratic equations so that they can be solved by taking the square root of both sides
- 9. the value of the greatest exponent in a polynomial
- 13. form the form of a polynomial that shows the terms listed from left to right with the powers of the variables from greatest to least
- 16. a symbol that stands for an unknown number or value and is written is italics
- 18. a number that is added or subtracted in a variable expression
- 19. operations operations that are the opposite of each other and undo each other's results