24-10-2016
Mathematics

contestada

the factors of x²+kx+8 are(x+a)(x+b), where a and b are integers. show that there are two possible values of k

Relax

Respuesta :

Аноним Аноним

24-10-2016

I hope this helps you

x.x+x.b+x.a+a.b

x^2+(b+a).x+a.b

a.b=8

a=1 b=8

a+b=k

k=1+8=9

a=2 b=4

k=2+4=6

a= -1 b= -8

k= -1-8=-9

a= -2 b= -4

k= -2-4=-6

Answer Link

Otras preguntas

write the relationship between society and individual

Cory bowled 2 games, scoring 148 and 190. What must she bowl in the third game in order to have a 195 average for these 3 games?

After the French Revolution, which statement describes religious rights of citizens? O A. They could worship in Catholic churches. B. They were forbidden to wor

If it takes 4/5 of an hour to paint 2/5 of a room how long does it take to paint one room

What ideas did the framers of the United States Constitution borrow from the following historical documents: the Magna Carta (1215), the English Bill of Rights

Nitrogen enters the roots of plants in a process called

2+90=? please someone help asap

4. Find x, the missing side length in the right triangle.

I NEED HELP PLEASE THANKS

is -55 a irrational number