Answer:
2.
x³+2x²+5x+10
x²(x+2)+5(x+2)
taking common
(x+2)(x²+5) is your answer
a³-a²b²-ab+b³
taking common
a²(a-b²)-b(a-b²)
taking common
(a-b²)(a²-b)
Answer:

Step-by-step explanation:

Solve parenthesis first

Find a common denominator.
The common denominator would be 6.
Because the first expression already has a denominator of 6 it stays the same.


Put that into the original equation.

Isolate the x. Add
to each side.

Find a common denominator.
we can use 18 as the common denominator.

Add.

We cannot simplify so our answer stays the same.
Answer: The Earth makes one rotation every day.
Step-by-step explanation:
Step-by-step explanation:
A = (1/2)bh ---> h = 2A/b = 2(12 cm^2)/(5 cm) = 4.80 cm
---> x^2 = h^2 + (b/2)^2
= (4.8 cm)^2 + (2.5)^2
= 23.04 cm^2 + 6.25 cm^2
or x = 5.41 cm
Therefore, the perimeter P is
P = 2x + b = 2(5.41 cm) + 5 cm = 15.8 cm
Answer:

Step-by-step explanation:
we have:

we also have:

from (1)(2) => proven