If 5 is one solution of the equation x^2 + 3x + k = 10, where k is a constant, what is the other solution?	Choose the correct choice from the following choices
A) -8 B) -4 C) -3 D) 1 E) 6
The phrase “5 is one solution of the equation” means that one value of x is 5. Thus, we first must plug 5 for x into the given equation to determine the value of k. So we have   5^2 + (3)(5) + k = 10   25 + 15 + k = 10   40 + k = 10   k = -30   Next we plug -30 into the given equation for k and then solve for x.   x^2 + 3x – 30 = 10   x^2 + 3x – 40 = 0   (x+8)(x-5) = 0   x = -8 or x = 5   Thus, -8 is the other solution. -8nswer -8.
<result>A</result>
If 5 is one solution of the equation x^2 + 3x + k = 10, where k is a constant, what is the other solution?