Eight more than the product of two and a number xx

Step-by-step explanation:

Let the number be xx

Therefore the product of two and the number is 2xx

If there is eight more than that number, we can say that

2xx + 8

If it is assumed that the equation is equal to zero

2xx + 8 = 0

2xx = - 8

xx = - 8/2

xx = - 4