curly7 curly7
  • 21-08-2017
  • Mathematics
contestada

Explain why the expression 7•3x is not equal to the expression 21x

Respuesta :

merlynthewhizz
merlynthewhizz merlynthewhizz
  • 28-08-2017
Working out the expression 7(3ˣ) is first to calculate the value of 3ˣ then multiply the answer to 7.

For example, let x = 2
Then 7(3ˣ) = 7(3²) = 7 × 9 = 63

With the same value of x = 2, calculating 21ˣ = 21² = 441, which isn't the same answer with the expression 7(3ˣ)
Answer Link

Otras preguntas

Groups of cells that work together to do a specific job
What organism is multicellular,makes it own food and is unable to move around its environment
what is it called when a civilian ship has its government's permission to raid enemy ships?
what effects did the enlightenment philosophers have on government and society?
PLEASE HELP! 4 qt= ______c
Which set of dimensions is possible for a rectangular prism with volume 336 in^3? A. 2 in. by 8 in. by 16 in. B. 3 in. by 8 in. by 16 in. C. 4 in. by 8 in. b
Which sentence contains a punctuation error? A. You can imagine our surprise when we discovered that thirty-three inches of snow had fallen overnight. B.
what is direct variation?
Identify Two Policies That The Federal Government Can Follow In Order To Make The Business Cycle Less Disruptive?
how was the humanist thought incorporated into renaissance art