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OpenStudy (anonymous):
how would u make 4tsquared+2t+1 a perfect square trinomail?
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OpenStudy (zzr0ck3r):
4t^2+2t+1?
OpenStudy (anonymous):
yes
OpenStudy (zzr0ck3r):
first devide away the 4 t^2+(1/2)+(1/4) cool?
OpenStudy (anonymous):
ok
OpenStudy (zzr0ck3r):
sorry: t^2+(1/2)t+(1/4)
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OpenStudy (zzr0ck3r):
now we take half the coefficient of the second term, and we put it inside with ()^2 along with the variable (t+(1/4))^2 and then we square it(half the 2nd term coeficient), and ADD it to the RHS of the equation. we also MOVE the c term to the RHS of the equation(c term here is (1/4). (t+(1/4))^2= -(1/4) + (1/4)^2
OpenStudy (zzr0ck3r):
say when
OpenStudy (anonymous):
ok
OpenStudy (zzr0ck3r):
now we just solve for t can you do this part?
OpenStudy (zzr0ck3r):
you will have two answers
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OpenStudy (anonymous):
ok yeah i can do this part thanks
OpenStudy (zzr0ck3r):
np you can always do this to solve for these things. If you get good at it, you can pretty much do it in your head.
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