Answer:
(a+4)(a-4)=a²-4² ITS LIKE THIS BECAUSE ITS AN IDENTITY,
⇒a²-16
Even when we solve it by the regular method of solving polynomials we get a²-16 as answer as there and thats the proof for the identity.
(a+b)(a-b)=a(a-4)+4(a-4)
⇒a²-4a+4a-16
⇒a²-16[NOTE:-4a+4a=0]
Thus we can see that a²-16 is the answer we get when we try to solve it by regular polynomial solution tooo.
And a²-16 is the polynomial from which we get (a+4)(a-4)
I depends on the price of gas and how many gallons she has and how fast she is going and if she would have to stop could you please clarify?
-eagle
Answer:
Isaac has $4.80 left
Step-by-step explanation:
$1.20 + 2.00 = 3.20
$8.00 - 3.20 = 4.80
Answer:
When you simplify the equation you have to combine like terms.
Here is what i got
If this was what your looking for i dont mind brainlest
speed = distance/time
The average speed will be the change in distance divided by the change in time.
(d(10) -d(5))/(10 -5) = (80 -20)/5 = 12 . . . . meters per second