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 ( 25+ )
Otras preguntas
The vertebrae and cartilaginous discs of the spine are parts of which body system? A. circulatory system B. excretory system C. mus
The vertebrae and cartilaginous discs of the spine are parts of which body system? A. circulatory system B. excretory system C. mus
During World War I, why were the Germans unable to finish the war on the western front?
Does it matter what order you put the alleles in? Like Bb and bB?
Tory has a mass of 40kg. She sleds down a hill that has a slope of 25 degrees. what is the component of her weight that is along her direction of motion?
If a sample of magnesium atoms has a mass of 36.8 g how many atoms are in the sample
After 32 days, 5 milligrams of an 80-milligram sample of a radioactive isotope remains unchanged. What is the half-life of this element? (1) 8 days (3) 16 days
In "Letter to His Son," what does Robert e. Lee advise his son to do? a. Work for the betterment of all people. b. Persevere despite trying circumstances. c. Co
How do poets address the first stage of loss, the lament, in elegies? a. by glorifying and extolling the virtues of the honorable dead b. by expressing grief an
Mike scored 38 points in the first half of the basketball game, and he scored p points in the second half of the game. Write an expression to determine the numb
