Answer:
The prime factors of 15 are: 1,3,5,15
The prime factors of 21 are: 1,3,7,21
The prime factors of 38 are: 1,3,13,39
The prime factor of 42 is : 1,2,3,6,7,14,21,42
-7.8
Step-by-step explanation:
42
3x^2 +5x
Let x=3
3(3)^2 +5(3)
3*9 +15
27+15
a = -3 b = -5 c = 9
A quadratic function is written in the form
ax^2 +bx +c =0
-3x^2-5x+9=0
