Please Help!!

Part A: Factor 3x2y2 - 2xy2 - 8y2. Show your work. (3 points)

Part B: Factor x2 + 10x + 25. Show your work. (3 points)

Part C: Factor x2 - 36. Show your work. (2 points)

Part D: Do the polynomials in parts A, B, and C have a common factor? Explain your answer. (2 points)

Question

Please Help!!

Part A: Factor 3x2y2 - 2xy2 - 8y2. Show your work. (3 points)

Part B: Factor x2 + 10x + 25. Show your work. (3 points)

Part C: Factor x2 - 36. Show your work. (2 points)

Part D: Do the polynomials in parts A, B, and C have a common factor? Explain your answer. (2 points)

anonymous · Answer

I already got part A

anonymous · Answer

I only need part b, c and d

anonymous · Answer

Ahem well i'll contribute to B:
$$x^2+10x+25=(x+5)(x+5)=(x+5)^2$$

anonymous · Answer

Oh and i'll do C as well: anything in the form of $(x^2-a^2)$ where a is an integer is factored as $(x+a)(x-a)$
$$x^2-36=x^2-(6)^2=(x+6)(x-6)$$

lanhikari22 · Answer

that's $$x^2$$ ? i thought it was a 2x v.v

anonymous · Answer

Thats it for b and c?

anonymous · Answer

@KeithAfasCalcLover

anonymous · Answer

I need part D, Anyone?

anonymous · Answer

Please I need help..

anonymous · Answer

Yeah thats all there is! Umm...no there is no common factor in all of them...

anonymous · Answer

ok thank you so much! @KeithAfasCalcLover would you help me with one more?

anonymous · Answer

Linda is studying the sale of a particular brand of cereals from the year 1993 to 2004. She writes the following function to model the sale of the cereal S(t), in million dollars, after t years:

S(t) = t2 + 5t + 52

Part A: What does the y-intercept of the graph of the function represent? (4 points)

Part B: What is the reasonable domain of the graph of the function? (3 points)

Part C: What is the average rate of change of the sale of the cereal from the first year to the fourth year? Show your work. (3 points)

anonymous · Answer

So we know "to find the y-intercept, set t to zero" Therefore, what they are asking is for part a is when t=0 (or at zero seconds) what is the sale of the cereal. And in this case, its 52. So when they started this graph, the cereal was selling 52,000,000 dollars. Now b would be what is the domain. |dw:1409182657749:dw| where the parabola equals zero would be your domain. So find between what x values $t^2+5t+52$=0 and thats your answer. C uses the formula: The average rate of change, m, of $f(x)$ from x=a to b is:
$$m=\frac{f(b)-f(a)}{b-a}$$

anonymous · Answer

So what is the answer for part A?

anonymous · Answer

I didnt really understand what you wrote... @KeithAfasCalcLover

anonymous · Answer

I understood a little tho

anonymous · Answer

Offline... Thanx anyway