Mathematics
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OpenStudy (anonymous):
Factor by grouping. x2 – 6x + 5x – 30
not sure what to do. Sorry I am not good at math and doin online math it doesnt help when am doing it alone :/ plz help :)
11 years ago
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jimthompson5910 (jim_thompson5910):
x^2 – 6x + 5x – 30
(x^2 – 6x) + (5x – 30)
x(x – 6) + (5x – 30)
x(x – 6) + 5(x – 6)
I'll let you finish.
11 years ago
OpenStudy (anonymous):
okay thanks, Do i have to contribute?
11 years ago
jimthompson5910 (jim_thompson5910):
what do you mean
11 years ago
jimthompson5910 (jim_thompson5910):
btw, you have one last step
what is your answer?
11 years ago
OpenStudy (anonymous):
like x times x and x times 6 that type of thing
11 years ago
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jimthompson5910 (jim_thompson5910):
oh you mean distribute
11 years ago
OpenStudy (anonymous):
yeah that sorry
11 years ago
jimthompson5910 (jim_thompson5910):
no you don't distribute because that would be taking a step backwards
11 years ago
OpenStudy (anonymous):
ok
11 years ago
jimthompson5910 (jim_thompson5910):
how would you factor x(x – 6) + 5(x – 6)
11 years ago
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OpenStudy (anonymous):
k let me figure it out im doing it on paper lol
11 years ago
jimthompson5910 (jim_thompson5910):
ok
11 years ago
OpenStudy (anonymous):
would it be (x-6) (x-5)?
11 years ago
jimthompson5910 (jim_thompson5910):
close
11 years ago
jimthompson5910 (jim_thompson5910):
but it's not -5(x-6)
it's +5(x-6)
so it should be (x+5)(x-6) or (x-6)(x+5)
11 years ago
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OpenStudy (anonymous):
oh okay so it positive
11 years ago
jimthompson5910 (jim_thompson5910):
yes
11 years ago
OpenStudy (anonymous):
okay thank you for your help I really apperciate it :)
11 years ago
jimthompson5910 (jim_thompson5910):
np
11 years ago
OpenStudy (anonymous):
I have one question to this problem that I dont quite get
11 years ago
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OpenStudy (anonymous):
what happen to the number 30 from the problem
11 years ago
jimthompson5910 (jim_thompson5910):
5x - 30 turns into 5(x-6) after I factored out the 5
11 years ago
OpenStudy (anonymous):
oh okay I got it now :) thanks
11 years ago