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(t+1)2+(t-8)=45
We move all terms to the left:
(t+1)2+(t-8)-(45)=0
We multiply parentheses
2t+(t-8)+2-45=0
We get rid of parentheses
2t+t-8+2-45=0
We add all the numbers together, and all the variables
3t-51=0
We move all terms containing t to the left, all other terms to the right
3t=51
t=51/3
t=17
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