josediaz100
josediaz100
26-08-2014
Mathematics
contestada
find zero of f(x)=x^2+2x-15
Respuesta :
l33t
l33t
26-08-2014
x ²+2x-15
factorize the equation
(x+5)(x-3)
therefore the zeros are -5 and 3
Answer Link
Аноним
Аноним
26-08-2014
[tex]f(x)=x^2+2x-15\\\\f(x)=0\iff x^2+2x-15=0\\\\x^2+5x-3x-15=0\\\\x(x+5)-3(x+5)=0\\\\(x+5)(x-3)=0\iff x+5=0\ or\ x-3=0\\\\\boxed{x=-5\ and\ x=3}\leftarrow zeros[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 86+ )
Otras preguntas
2 kg of coconut juice which costs $5/kg were combined with 8 kg of coconut milk which costs $3/kg. Find the cost per kg of the mixture.
Why do you think upper-class Latin Americans favored governments run by caudillos?
Which of the following statements describes an electric generator? A. A magnet is rotated through a coil of wire to produce an electric current.
Which sentence does not contain any errors in the use of italics or quotation marks? a. We stood and clapped after the Civic Opera performed "The Magic Flute" l
How did Andrew Jackson's election illustrate the growth of democracy in the United States? a. Jackson was the first president chosen unanimously. b. Jackson was
Which explains Daniel Webster''s compromise on the issue of slavery? A. He agreed with John C. Calhoun''s position. B. He saw no other way to keep the United St
Was wirst du in der zukunft sein? (you can use un zu and man muss for this) Hast du einen Teizetjob? (you can make it up)
Which element has the greatest density at STP? (1) scandium (3) silicon (2) selenium (4) sodium
Which element has the greatest density at STP? (1) scandium (3) silicon (2) selenium (4) sodium
Chintu and raven build a roccket, which moved from the earth to about 86m into the shy. It tales 3.7 seconds to reach the rocket highest point . what is his sp
