homeworkdaizy homeworkdaizy
  • 21-09-2020
  • Mathematics
contestada

(197)^2-(97)^2 evaluate without using calculator​

Respuesta :

LammettHash
LammettHash LammettHash
  • 21-09-2020

Recall the difference of squares identity:

a² - b² = (a - b) (a + b)

So

197² - 97² = (197 + 97) (197 - 97) = 284 * 100 = 28,400

Answer Link

Otras preguntas

He was the Spanish explorer who conquered the Aztec Empire in the 1520s
what is the lowest term of 8/12?
Your science teacher assigns you to complete a presentation on DNA with a group of fellow students. The project requires writing, drawing, presenting, and creat
ratio of 55 hours to 3 days
Which form of early communication was used in the Fertile Crescent region? hieroglyphs petroglyphs cave paintings cuneiform
Which point lies on a side of rstu
what was the main commodity grown in georgia
What makes the stars Exist?
The power of Congress to declare war is a(n) __________.. A. Judicial power. B. Implied power. C. enumerated power. D. Forbidden power
find the value of the numerical expression: 2^4