Question

3t2-5t+2 by completing the square method

Answer 1

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Answer 2

3t2-5t=-2

3/3t2-5/3t=-2/3

t2-5/3t=-2/3

t2-5/3t+(5/6)2=-2/3+(5/6)2

(t-5/6)2=-2/3+25/36

(t-5/6)2=-24+25/36

(t-5/6)2=1/36

taking sq root

t-5/6=+-1/6

t-5/6=1/6

t=1/6+5/6

t=1+5/6

t=6/6

t=1

again

t-5/6=-1/6

t=5/6-1/6

t=5-1/6

t=4/6

t=2/3