Answer:
10x²+11-2x
Step-by-step explanation:
I hope you mean 7x²+8+5, not 7x²+8x+5.
We need to combine like terms. Anything with squared should be added together, et cetera.
(7x²+8+5)+(3x²-2x-2)
You can take out the parenthesis, because they don't matter in addition.
7x²+8+5+3x²-2x-2
Add the terms, step by step. Each bold pair needs to be added together.
7x²+8+5+3x²-2x-2
10x²+8+5-2x-2
10x²+11-2x
Now there's no more we can add together.
Answer:
a) 9.62m (3 s.f.)
b) 2.58m (3 s.f.)
Step-by-step explanation:
Please see attached picture for full solution.
The answer are (1, 5) and (1, 3)
Answer:
Step-by-step explanation:
Answer:
4 and 12
Step-by-step explanation:
Given
f(x) = 4
, then
f(0) = 4
= 4 × 1 = 4 [ 
= 1 ]
f(1) = 4
= 4 × 3 = 12
