WHAT ARE THE FACTORS OF THE FOLLOWING TRINOMIAL? s^2 + 10s +25
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OpenStudy (anonymous):
What two numbers add to make 10 but multiply to make 25?
OpenStudy (anonymous):
i mean polynomial >?
OpenStudy (anonymous):
No, it's a trinomial.
OpenStudy (anonymous):
You are looking for two numbers which add to make 10 but multiply to make 25.
OpenStudy (anonymous):
5 n 5 and its polynomial cause im looking at the worrk that im doing .
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OpenStudy (anonymous):
are they negative or positive sighs
OpenStudy (anonymous):
Good! They are both positive. since otherwise they would not add to 10.
OpenStudy (anonymous):
can yu help me with this one also .4w^2 +20w +25 help me with the steps
OpenStudy (anonymous):
Yes, one moment.
OpenStudy (anonymous):
So we are looking for some value a and b such that
(2w + a)(2w + b) = 4w^2 + 20w + 25
That means we need:
2a + 2b = 20
and
a * b = 25
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OpenStudy (anonymous):
ok
OpenStudy (anonymous):
5 and 5 also right
OpenStudy (anonymous):
Yep! Nice job.
OpenStudy (anonymous):
3m^2 -12m + 9 help aqain im trying to understand more
OpenStudy (anonymous):
Ok so here we must have a 3 on one of the m terms, and a 1 on the other since no other numbers multiply to make 3.
So we need:
(3m + a)(m + b) = 3m^2 - 12m + 9
That means that:
3b + a = -12
and
a * b = 9
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