giani22
giani22
16-03-2022
Mathematics
contestada
can you please help me this with this ):
Respuesta :
amanukyan1962
amanukyan1962
16-03-2022
x² − 2x − 15 = (x + r)( x + s)
Factor to get: (x + 3)(x - 5) = (x + r)( x + s)
Rewrite as: (x + 3)(x + -5) = (x + r)( x + s)
So, it's possible that r = 3 and s = -5
Here, r - s = 3 - (-5)
= 8
Answer Link
VER TODAS LAS RESPUESTAS ( 78+ )
Otras preguntas
What are the half equations that exist in thus reaction: 4Na + O2 --->2Na2O .
Make labeled diagrams of badminton court and badminton racket.
What is Mongolia's nickname? Why?
What is the next term in the geometric sequence 16, –4, 1, –(1/4), … ?
what does jupiter and saturn have in common and what do they don't
9 students volunteer for a committee. How many different 6-person committees can be chosen?a. 1 b. 362,880 c. 60,480 d. 84
The width of a rectangular window is 2 feet more than its height. If the area is 35 square feet, what is the height?
Factor 3x ^2 +20x+12
An element X belongs to 4th period and 17th group. Write the formula of the compound formed when it reacts with Y( atomic no.-13, mass no.27.)
what does jupiter and saturn have in common and what do they don't
