help me someone! im not sure what to do, i have a big quiz on the distributive property and i dont understand?
Favorite Answer
Okay, so to answer your question, the distributive property just simplifies the statement. For example, let’s say a problem says:
2(3x-4)=16 OR 2 times (3x minus 4) equals 16
So we would multiply 2 times 3x, and then we would multiply 2 times 4. That gives us something like this:
6x-8=16
Now, we need to isolate the variable (x), so we add 8 to both sides. -8+8 equals 0, and 16+8 equals 24. So now we have:
6x=24
Divide both sides by 6 leaving you with:
x=6
To check it:
2(3(4)-4)=16
2(12-4)=16
2(8)=16
16=16
So your answer is correct!
The general equation is as follows:
a * (b + c) = (a*b) + (a*c)
example
2 * (5 + 3) = (2*5)+(2*3) [note how the 2 is distributed]
check the work:
2 * (5+3) = (2*5) + (2*3)
2 * (8) = (10) + (6)
2*8 = 10 + 6
16 = 16
You can also use negative numbers and variables
3 * (x-5) = (3*x) + (3*(-5))
= 3x + (-15)
= 3x – 15
For example:
5(3-1) + 4
First Step: Multiply 5 x 3, Multiply 5 x 1
Second Step: Rewrite 15 – 5 + 4
Third Step: Solve 15 – 5 = 10
10 + 4 = 14
3 (2+1)
The three here is the multiplier. You multiply 3 by 2 and 1. The answer is (6+1)
The number in front of the parntesis () is always multiplied by the numbers inside of them.
1+2(2-1)
1+(4-2)
1+(2)
3
Distribute the three to the x and to the 1.
3(x+1)=3x+3
4(5+4) = 4(9) AND it also equals 20 + 16.
It’s that simple
hope this helps
For example:
4(x + y) Mulitply 4 by x and y……..so the answer would be:
4x + 4y
another example:
2(5x + 3) Mutiply 2 by 5x and 3……so the answer would be:
10x + 6
Another example:
3(2x + 2y) Multiply 3 by 2x and 2y….so the answer would be:
6x + 6y
Hope I helped! Good luck!
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