Simplify and expand (X+3)(x-3)(3x+3)
2 answers:
Answer:
3x^3 + 3x^2 - 27x - 27
Step-by-step explanation:
<h3>
Answer: 3x^3 + 3x^2 - 27x - 27 </h3>
===============================================
Work Shown:
(x+3)(x-3)(3x+3)
(x^2-9)(3x+3) .... difference of squares rule
y(3x+3) .... let y = x^2-9
y*3x + y*3 .... distribute
3x( y ) + 3( y )
3x( x^2 - 9 ) + 3(x^2 - 9) .... plug in y = x^2-9
3x*x^2 + 3x*(-9) + 3*x^2 + 3*(-9) .... distribute
3x^3 - 27x + 3x^2 - 27
3x^3 + 3x^2 - 27x - 27
You might be interested in
Answer:
5/7
Step-by-step explanation:
I thnk 83 if the year has 365 days
Answer:
-4
Step-by-step explanation:
Answer:
60 penguins
Step-by-step explanation:
We need to find out how many times 9, the number of polar bears for every 20 penguins, was multiplied by, so that we can multiply 20 penguins by the same amount.
27/9 = 3
20*3 = 60
You have to use distributive property.<span />
