Answer:
Step-by-step explanation:
A quadratic equation can be factorised if and only if there are rational roots.
For any quadratic equation the discriminant decides about the nature of roots.
Thus only if the discriminant is a perfect square we can have rational roots and in this case only factorization is possible.
In the given equation

Since 1 is a perfect square we can factor and solve

Answer:
linear model
Step-by-step explanation:
linear graph will produce a straight line
Answer:
441 seats are being used :]
Step-by-step explanation:
1 slice of veggie pizza and 1 slice of pepperoni pizza. = 2 slices of pizza in total
Answer:
3 pages per week
Step-by-step explanation:
21 (pages written)/ 7 (amount of days)
21/7= 3