Which equation represents:
"an unknown integer, multiplied by two times itself, plus two times a different unknown integer, equals negative 20."
a) 2x^2 + 2xy + 20 = 0
b) 2x^2 + 2xy − 20 = 0
c) 2x^2 − 2xy + 20 = 0
d) 2x^2 − 2xy − 20 = 0

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.