Refer to your Expeditions in Reading book for a complete version of this text.
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X^2 - 10x + 36 = 0;
We use the quadratic formula: x = ( - b + or - i
)/ (2a);
We have a = 1; b = -10; c = 36;
Then, x = ( 10 + or -i
)/2 = 5 + or - 
)/2 ;
We use the quadratic formula: x = ( - b + or - i
We have a = 1; b = -10; c = 36;
Then, x = ( 10 + or -i