quadratic formula
Americannoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Before students are presented with the quadratic formula, they’re taught a simpler method to solve certain equations.
From Seattle Times • Feb. 10, 2020
The quadratic formula learned by generations of math students is difficult to remember, but it can be used to solve quadratic equations where y = 0.
From Seattle Times • Feb. 10, 2020
By the quadratic formula, the roots of the characteristic equation are 1 ± 2i.
From Textbooks • Mar. 30, 2016
We can derive the quadratic formula by completing the square.
From Textbooks • Feb. 13, 2015
The quadratic formula has been known for centuries; the ninth-century mathematician al-Khowarizmi knew how to solve almost every quadratic equation, though he didn’t seem to consider negative numbers as roots.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.