Answer:
6x^3+11x^2-14x+12
Step-by-step explanation:
We just simply add like terms (terms with same power of x):

Like terms are in brackets now
So you just simplify now to give you:

Answer:
14
Step-by-step explanation:
It says 'Evaluate (y - 9) + (3 + x), when y = 15 and x = 5'.
So we'd put 15 in y's place. It'll look like this (15 - 9).
Then we'd put 5 in x's place. It'll look like this (3 + 5).
You subtract (15 - 9) which equals 6. And you'd add (3 +5) which equals 8. You add 6 + 8 together since those are your answer for the parentheses. Your final should be 14. Hopefully this helped!
Solving equations is a basic skill that you must master to deal with a
lot of problems in mathematics, physics, chemistry, administration,
economy, and almost every activity where you need to use a formula or a
model. to solve for h, you follow these steps: 1) multiply both sides by
2 => 2A = (a+b)h; 2) divide both sides by (b+a) => 2A/ (a+b) = h.
So the answer is: h = 2A / (a+b).
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Answer:
Step-by-step explanation: