anagoris
anagoris anagoris
  • 24-10-2016
  • Mathematics
contestada

is ( square root 12 -4)(4+square root 12) rational or irrational

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 24-10-2016
remember
(a-b)(a+b)=a²-b²

we can rewrite what we were given into
[tex]( \sqrt{12}-4)( \sqrt{12}+4)=( \sqrt{12})^2-(4)^2=12-16=-4 [/tex]
definitely rational
Answer Link

Otras preguntas

The length of an insect’s wing, drawn at a scale of 50:1, is 15 cm. What is the actual length of the wing?
Describe the process of scientific inquiry and explain why it is not a rigid method
How do i re-write a fairy tale? It seems impossible.
Barb is making a bead necklace.she strings 1 white bead,then 3 blue beads,then 1 white bead,and so on.what is a rule for this pattern
The sum of two numbers is 36 the smaller number is 14 less than the larger number. what are they?
How many terms did roosevelt serve as president?
A building that is 100 ft tall casts a shadow that makes a 30 degree angle with the ground. Approximately how long, in feet, is the shadow across the ground?
two major platform issues of the Republican party.
What are some of the ways a seller of goods might reassure a possible buyer who is faced with imperfect information?
Deforestation can result in what