5+ 10 + 6x 1/10 + 7x1000 in decimal form.

Remember order of operations.  Please (Parenthesis and brackets) Excuse (exponents) My (multiplication) Dear (Division) Aunt (Add) Sally (Subtract).  Also remember that multiplication and division as well as addition and subtraction should go from left to right. So if you were to do this problem first I'd convert the fraction 1/10 to a decimal.  That's like saying 1 in 10 or 10%.  So it should convert to .10 x 6 = 0.60 and don't forget to multiple 7 x1000 next. (Left to right).  7,000.  So it becomes 5+10+0.60+7,000 then add. 7,015.60 is your answer. 

(x+3)(x+2)=0       zero product property
x^2+6=31            square root property