whadduptori
PLease help. Divide 3x3 + 3x2 + 2x – 2 by x + 3 using long division.
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whadduptori
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im still confused.. /;
zordoloom
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Do you still need help??
whadduptori
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yess
zordoloom
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|dw:1354653752481:dw|
whadduptori
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you are amazing, thank you so much! you made it clear too!
zordoloom
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Yep
whadduptori
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can you help me with one more?
zordoloom
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Sure
whadduptori
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What are the real or imaginary solutions of the polynomial equation?
27x3 + 125 = 0
zordoloom
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27x^3+125=0 is the equation?
whadduptori
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yupp
zordoloom
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Do you also want the work?
whadduptori
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yes please, that would actually help! i understand it better
zordoloom
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okay.
zordoloom
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27x^3+125=0.... so factor the left side
(3x+5)(9x^2-15x+25)=0
Now split each side
(3x+5)=0
(9x^2-15x+25)=0
And solve each one separably.
For the first one: (3x+5)=0 ... subtract 5 and then divide by 3
You get x=-5/3
Now solve the other part using the quadratic equation.
zordoloom
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Do you know how to use the quadratic formula? and do you follow so far?
whadduptori
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yes!
whadduptori
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so i did the quadratoc formula and my answers i got
whadduptori
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whadduptori
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and the other answer the same thing but its a minus sign between them am i right?
zordoloom
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I'll just show you what I got.
zordoloom
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|dw:1354655014389:dw|
whadduptori
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ohhh i was completely off. ohk so thats the answer?
zordoloom
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Yes
whadduptori
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okay thank youu