Quadratic trinomals are in the form of x^2+bx+c
You need to find the factors of c that add up to b.
So the first question x^2+5x-14
You are looking for the factors (multiply) of -14 that add up to 5
You need to do the same for the next one. Factors of 3 that add up to -4
Those factors would be -3 and -1
That makes the factors (x-1)(x-3)
Answer:
B. 294 divided by 21 = 14. she paid 14 for each t shirt
Answer:
12. a = 2
13. 
Step-by-step explanation:
12.
6a(a + 3) = 2a(3a + 5) + 16
First, distribute 6a on the left side, and distribute 2a on the right side.
6a² + 18a = 6a² + 10a + 16
Subtract 6a² from both sides.
18a = 10a + 16
Subtract 10a from both sides.
8a = 16
Divide both sides by 8.
a = 2
13.

The LCD of 2 and 3 is 6. We multiply both sides of the equation by 6 to get rid of all denominators.



Combine like terms on the left side. Distribute the 2 on the right side.

Subtract 2x from both sides.

Divide both sides by 3.

Answer:
4 is included in the domain
Step-by-step explanation: