the commutative law of multiplication=ab=ba, a(bc)=c(ab)
This question wants us to factor the expression 5x^2 - 15x.
Let's look at what we can take out. Both terms have at least one x in them. Let's take it out.x(5x-15)
What else do they have in common? Both terms are divisible by 5. Let's take it out.5x(x-3)
Now there's no further we can go. This is our answer!
hope this helps you....
First, distribute (multiply) 5x to 3. You get --> 15x.
Next, distribute 5x to 4. You get --> 20x.
Now, combine the two terms with addition. 15x+20x=35x.
35x is the answer.
Hope this helps!
the answer will be b x² +x-1
16.80 times .20= 3.36