mariamkhurram43
mariamkhurram43
11-05-2018
Mathematics
contestada
(K-4)(k+4)=0 quadratic equation
Respuesta :
gmany
gmany
12-05-2018
[tex](k-4)(k+4)=0[/tex]
use:
[tex]a^2-b^2=(a-b)(a+b)[/tex]
[tex]k^2-4^2=0\\\\k^2-16=0\ \ \ \ |+16\\\\k^2=16\to k=\pm\sqrt{16}\\\\\boxed{k=-4\ \vee\ k=4}[/tex]
Other method:
[tex](k-4)(k+4)=0\iff k-4=0\ \vee\ k+4=0\\\\\boxed{k=4\ \vee\ k=-4}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 99+ )
Otras preguntas
A girl found the skull of an animal. She did not know what the animal was, but she was sure that it preyed on other animals for its food. Which clue led to her
what is -126=14K solution
When does a substance releases heat?? (it's about changing state of matter)
Can producers function without sunlight?
What do I do to simplify 77/84 ?
find the perimeter and diagonal of a square whose area is equal to the area of a rectangle whose length is 9m and breadth is 4m
Motion sickness comes in many forms, not just seasickness. Ninety percent of the human race is susceptible to motion sickness of one kind or another. Some peopl
Divide.Be sure your answer is in simplest form.12 divided by 4/5=__3/4 divided by 7/8=__8 divided by 6/7=__8/11 divided by 4/7=__4 divided by 5/7=__3/4 divided
t=pd/2xsolve for Xi always get confused when theirs more then one letter
Cell: ? Tissue: ? Organ:? Organ system: ? Organism: ? Define these terms in relation to each other