Grade 11 Math Help Please!

[Wub to craft]

For what integer values of k can each polynomial be factored? Explain!

a) x(squared) + kx + 4

b) x(squared) + 4x + k

c) x(squared) + kx + k

I fucking suck at math, how do I do this?!

 

[woodcut ox]

I dont really remember polynomial's but do they have a range of numbers that work for each or just a single solution? might be able to help if you could anwser.

 

[Wub to craft]

I dont really remember polynomial's but do they have a range of numbers that work for each or just a single solution? might be able to help if you could anwser.

I'm guessing a range. :/

 

[woodcut ox]

I'm guessing a range. :/

Ill try to figure it out for you, but i cant promise anything, if i find what i think is a solution i will edit this post.

 

[Wub to craft]

Ill try to figure it out for you, but i cant promise anything, if i find what i think is a solution i will edit this post.

Thanks!

 

[idrinkgas]

answer to 1st one is 4 and 5 im 99.9999999 percent sure

 

[runtkirk3]

Shouldn't this be in the homework help section?

 

[Swan]

That's the first one done for you.

All you need to do is find out what actually works in factorisation. Polynomials of the 2nd degree (i.e. quadratics) are rather easy; they're composed as Ax^2 + Bx + C. Notice what I've done in my solution, I've found out what AC and B are respectively, and then found values for k which suit the method of factorisation.

Use similar methods for the other two.