The sum of all solutions for x in the equation x^2 – 8x + 21 = |x – 4|+ 7 is equal to:	Choose the correct option:
A) –7 B) 7 C) 10 D) 12 E) 16
x^2 - 8x + 14 = |x-4|   RHS can be -ve or +ve   x^2 - 9x + 18 = 0   x^2 - 7x + 10 = 0   x= 6,5,3,2   We test all 4 values in original equation, all ok.   Thus, Sum = 6 + 5 +3 + 2= 
<gadget id="calculator">6 + 5 +3 + 2</gadget>
<output>16</output>
16   Ans (16)
<result>E</result>
The sum of all solutions for x in the equation x^2 – 8x + 21 = |x – 4|+ 7 is equal to: