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anonymous
 one year ago
Which of the following is a polynomial with roots 5, 7, and −8?
f(x) = x3 − 35x2 − 56x + 61
f(x) = x3 − 35x2 − 61x + 280
f(x) = x3 − 4x2 − 35x + 56
f(x) = x3 − 4x2 − 61x + 280
anonymous
 one year ago
Which of the following is a polynomial with roots 5, 7, and −8? f(x) = x3 − 35x2 − 56x + 61 f(x) = x3 − 35x2 − 61x + 280 f(x) = x3 − 4x2 − 35x + 56 f(x) = x3 − 4x2 − 61x + 280

This Question is Closed

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1f(x) = (x5)(x7)(x+8) = (x5)(x^2+x56) = x^3+x^256x5x^25x+280 f(x) = x^34x^261x+280 So the answer is d

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how did you do that so fast

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1cause this stuff is easy

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1i can do pre calculus in 7th grade

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so you are super man

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0mind helping me with one more

MrNood
 one year ago
Best ResponseYou've already chosen the best response.1however  @OregonDuck all oyu have given the poster is the knowledge that YOU can solve this question what iwould be truly helpful would be to show HOW to solve it  then let HIM do the work you learn better by DOING than by watching

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Which of the following is a polynomial with roots 4, 2i, and −2i? f(x) = x3 − 4x2 + 8x − 4 f(x) = x3 − 8x2 + 16x − 4 f(x) = x3 − 4x2 + 4x − 16 f(x) = x3 − 4x2 + 8x − 16

MrNood
 one year ago
Best ResponseYou've already chosen the best response.1if the roots are a,b & c then the factors are (xa)(xb)(xc) if you put your three roots into that formula then mutiply out the 23 brackets you will come to the answer YOURSELF

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1Work backwards for each root to get the factor.. (x  4)(x  2i)(x + 2i) Distribute.. (x  4)(x²  4i²) = (x  4)(x² + 4) [Noting that i² = 1] = x³  4x² + 4x  16 [A]

MrNood
 one year ago
Best ResponseYou've already chosen the best response.1if the roots are a,b & c then the factors are (xa)(xb)(xc) if you put your three roots into that formula then mutiply out the 3 brackets you will come to the answer YOURSELF

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1wait no it is c sorry i was reading mine post i put a for some reason lol

MrNood
 one year ago
Best ResponseYou've already chosen the best response.1@OregonDuck Once again  juist showing that YOU know how to do this type of questin. LET the poster do some of the calculation  he will actually LEARN from that instead of copying

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im working it out as well mrnood

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1he will learn my failing the dba or segment exams cause you need your notes and memory to help you

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i am taking these problems down as notes

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so i can learn to do the harder ones

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1EXACTLY SEE ^^^^^^^^

MrNood
 one year ago
Best ResponseYou've already chosen the best response.1but until you do one yourself you will not be sure that oyu UNDERSTAND how to do it you do not need to learn 'harder' questions  you need to learnt the METHOD  then oyu can do ALL questions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i did 8 out of the 10 of my practice questions @MrNood but just needed help for these two

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1FINE ASK HIM FOR HELP NOT ME AL LEAST I SHOWED MY WORK!!!!!!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Please dont fight @OregonDuck and @MrNood

MrNood
 one year ago
Best ResponseYou've already chosen the best response.1Don't get in a sulk Just try to help posters to learn rather than going right through to tthe answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you @MrNood and @OregonDuck
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