Help with checking answers. Medal. Factor each trinomial. Then match the polynomial (term) on the left with its factored form (definition) on the right.
I think that \[x^2-9x-20\] is C.
yes right bec if you use headphone method two number -4 and -5 if we add them we should get -9 but if we multiply we get positive 20 but we need negative so yes we can solve that by using quadratic formula
Oh thanks ^-^ Can you check this one: I think that \[x^2 - x - 20\] is D.
yes right
two number 4 and -5 multiply both 4 times -5 = -20 right add or subtract -5+4 = -1 so yes right
\[x^2 + 8x - 20 \] is A?
yes right again two number 10 times -2 = -20 right 10-2 = 8 yesh right
Thank you! ^-^ I just needed reassurance. :)
yeah np good job
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