For all integers a and b, a%b = (a + b)(a - b). If 4%x = 7, then which of the following could be a value of x?	Choose the correct choice from the following.
A) -4	B) -3	C) 2	D) 4	E) 6
4%x = (4+x)(4-x)   16-x^2 = 7   x^2 = 9   x=-3,3   Ans: -3
<result>B</result>
For all integers a and b, a%b = (a + b)(a - b). If 4%x = 7, then which of the following could be a value of x?