to division problems must be interpreted correctly to answer a real life problems please fill in the blank

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12

Which diagram shows lines that must be parallel lines cut by transversal?