I need help with 28 problems. Please?

Question

anonymous · Answer

attachment

dmezzullo · Answer

Are they Exam or Test Questions sir?

anonymous · Answer

Wel, it is an exam. But I want examples. Not necessarily the ACTUAL ANSWER. You know? And If i was asking for that..then that'd be cheating. And that's a big no no

terenzreignz · Answer

That's good :)
this particular question requires a skill... it's called factoring... familiar? :D

anonymous · Answer

Um, I can't remember how to do it :(

terenzreignz · Answer

Here's an example.. say we need to find...
$$\Large (x^2 - 3x +2)\div(x-1)$$
It's easier to see in fraction form...
$$\Large \frac{x^2 -3x +2}{x-1}$$

Now, you need to factor the numerator, it factors into (x-2)(x-1)
so...
$$\Large \frac{(x-2)(x-1)}{(x-1)}$$
And from here, you can just go ahead and cancel...
$$\Large \frac{(x-2)\cancel{(x-1)}}{\cancel{(x-1)}}=x-2$$

Cheers, mate :D

anonymous · Answer

So, what you do is make it into a fraction. Then you separate them? I'm confused

terenzreignz · Answer

On second thought, this may actually require long division of polynomials...

anonymous · Answer

Oh

amistre64 · Answer

$$\frac ab=q$$
$$a=bq$$
since we have a presumably correct option to pick; we could eliminate some possibilites

the first coeff has to be a product of firsts; and the last coeff has to be a product of lasts

amistre64 · Answer

$$\large (b_nx^n+...+b_o)(q_kx^k+...+q_o)=(b_nq_k~x^{n+k}+...+b_oq_o)$$

anonymous · Answer

ugh i gtg for a src