trinity124 trinity124
  • 07-09-2015
  • Mathematics
contestada

X-squared plus twenty-five equals zero

Respuesta :

AL2006
AL2006 AL2006
  • 07-09-2015
Subtract 25 from each side of that equation, and it says that x-squared = negative 25. 'X' can't be any real number. If you know how to work with imaginary numbers, you'll know that the two solutions are x=5i and x=-5i ... the ' i ' is the symbol meaning the square root of -1 .
Answer Link

Otras preguntas

which empire did the nubians interact with the most?
how is establishing causation useful in exploring the origins of the American Revolution
Which is the best version of this sentence? A) Never one to settle down, Walton has worked driving trucks, as a welder, and a lifeguard--all in the past two yea
A 20 kg ball is thrown into the air. It is going 5.0 m/s when thrown. How much potential energy will it have at the top
write 30/100 as a money amount and as a decimal in terms of a dollar
which is greater 4.32 or 4.5
40cm in 18mm as a ratio
What were Andrew Jackson's beliefs regarding voting? A. All adults should be allowed to vote. B. All adult males should be allowed to vote. C. Only landowning a
organs that expand to fill with air
This system is responsible for sending and receiving information around the body.