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1. The factors of a2 - 9 are
a. (a+3)(a -3)
b. (a+9)(a-9)
c. (a-9)(a-9)
d. (a+3)(a+3)
2. A linear equation consists of polynomials of degree
a. One
b. Two
c. Three
d Four​

Respuesta :

mathmate

Answer:

Step-by-step explanation:

1. (a+3)(a-3) = a²+3a-3a-9 = a²-9

2. a linear equation consists of a polynomial of degree one.

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