Answer:
Linear: 0.45-1 , 5 , 2x-6
Quadratic: 19x2 , x2-3x+4
Exponential: 4,5x+1.8
Please do not hesitate to ask further questions.
1. -1/20
work: Write all numerators above the least common denominator: -8+2+5/20
*Calculate the sum or difference: -1/20
X^2 + 6x - 27
(x - 3)(x + 9)
The answer is: (x - 3)(x + 9).