I'm going to rewrite f(x) and g(x) so that I don't get confused.
Based on your description:
f(x) = (2x)

+ x - 1 simplified to 4x

+ x - 1
g(x) = x

+ 3x - 3
Now we handle parts A-D.
A. f(x) + g(x)
We combine like terms.
4x

+ 5x

+ x + 3x - 1 - 3 = 5x

+ 4x - 4
B. f(x) - g(x)
Again combine like terms like normal except this time subtracting.
4x

- x

+ x - 3x - 1 - (- 3) = 3x

- 2x + 2
C. 2f(x) + 2g(x)
Multiply, then again CLT
2f(x) = 8x

+ 2x - 2
2g(x) = 2x

+ 6x - 6
Combine like terms to get 10x

+ 8x - 8
D. 2f(x) - 2g(x)
Use the same 2f(x) and 2g(x) terms and this time just subtract.
You get 6x

- 4x + 4
Answer:c
Step-by-step explanation:
Answer:
-1, 2,5,8
Step-by-step explanation:
nth term =a+(n-1) *d
-1+(n-1) *3
-1+3n-3
3n-4
t2 =3*2-4
6-4
2
t3=3*3-4
9-4
5
t4=3*4-4
12-4
8
Answer:
The answer is A
Step-by-step explanation:
Answer:
x=5,z=4.5
Step-by-step explanation:
Given the angles are right angle i.e. 90°
90-9x = 90 - 10z
9x = 10z =45°(because diagonals bisects angles)
x=45/9
=5
z=45/10
=4.5