Find the product of (3 a^3) (- 5 ab)
2007-04-19 17:30:02 · 7 answers · asked by swtsabre 1 in Science & Mathematics ➔ Mathematics
-15a^4b
2007-04-19 17:32:20 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
For this we use what is called the commutative property of multiplication, which says:
a*b = c
Is the same thing as:
b*a = c
So now let's look at your problem:
(3a^3)(-5ab)
All we do is combine what looks alike, which turns out to look like:
(3*-5)(a^3*a)(b)
(-15)(a^(3+1))(b)
(-15)(a^4)(b)
-15a^4b
And there ya go.
2007-04-20 00:36:28 · answer #2 · answered by Eolian 4 · 0⤊ 0⤋
The product means multiplying.
answer = -15a^4b
2007-04-20 00:34:05 · answer #3 · answered by Justin M 1 · 0⤊ 0⤋
Use the associative property:
(3 a^3)(-5ab)=(3)(-5)(a^3)(a)(b)
Now you can multiply anything that looks the same (not technical, I know).
2007-04-20 00:35:29 · answer #4 · answered by slathered_in_sauce_sarcastic 2 · 0⤊ 0⤋
-15(a^4)b
2007-04-20 00:32:22 · answer #5 · answered by soliskama 1 · 0⤊ 0⤋
-15a^4 b
2007-04-20 00:33:40 · answer #6 · answered by answer-answer-answer 3 · 0⤊ 0⤋
yes
2007-04-20 00:32:27 · answer #7 · answered by Anonymous · 0⤊ 0⤋