<h3>hello!</h3>

is the product of an irrational number and an irrational number always irrational?
We can easily check that by just multiplying some irrational numbers on our calculator.
Let's take
times 
Multiply:-
The result is an irrational number.
Let's try to multiply π times itself.
Once again, we have an
number.
Hence, the answer is:-

<h3>note:-</h3>
- Hope everything is clear; if you need any more explanation, kindly let me know.
Answer:
f(x) = 4x² + 9x - 28
Step-by-step explanation:
Create the polynomial by multiplying (4x - 7) and (x + 4) together:
f(x) = 4x² + 16x - 7x - 28, or
f(x) = 4x² + 9x - 28
Next time, please share the given answer choices. Thanks.
First equation:
5(x+1)=20 —— distribute the 5 to the x and 1
5x+5=20 ——- subtract 5 from 20
5x=15 ———— divide by 5 from both sides
X=3 ————— answer
Second equation:
5x+1=20——— subtract 1 from 20
5x=19 ———— divide by 5 from both sides
X=19/5———— answer in fraction form
X=3.8————- answer in decimal form
Answer:
The answer is 10.
Step-by-step explanation:
I'm certain this is correct. :D