#1**+10 **

That wouldn't quite work, because if you were to multiply 5(5a + 1) out, you would end up with 25a +5, when you would want that to be 10a +6.

So you have to think of two numbers that would divide out of 10 and 6 equally. 6 and 3 wouldn't work, but 2 would.

We place a 2 on the outside then, and divide two from the two numbers.

10a + 6

**2(5a + 3)**

NinjaDevo Feb 17, 2015

#1**+10 **

Best Answer

That wouldn't quite work, because if you were to multiply 5(5a + 1) out, you would end up with 25a +5, when you would want that to be 10a +6.

So you have to think of two numbers that would divide out of 10 and 6 equally. 6 and 3 wouldn't work, but 2 would.

We place a 2 on the outside then, and divide two from the two numbers.

10a + 6

**2(5a + 3)**

NinjaDevo Feb 17, 2015