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2006-09-25 08:50:53 · 21 answers · asked by cak 1 in Science & Mathematics Mathematics

21 answers

-3(2a+4b)-4a
= -6a-12b-4a
= -10a-12b

2006-09-25 21:54:51 · answer #1 · answered by Anonymous · 0 1

1. multiply by 3: 6a + 12b - 4a
2. do the arithmetic: 6a-4a = 2a
3. include the 'b' variable: 2a + 12b
4. divide by a common number; in this case = 2
5. a + 6b

Unless your dash is a -3, then just follow the pattern above. One can also solve for each variable:
1. a = 6b
2. a/6 = b

Is this what you wanted?

2006-09-25 15:59:31 · answer #2 · answered by William T 3 · 0 0

Simplifying
-3(2a + 4b) + -4a
(2a * -3 + 4b * -3) + -4a
(-6a + -12b) + -4a

Reorder the terms:
-6a + -4a + -12b

Combine like terms: -6a + -4a = -10a
-10a + -12b

-10a -12b

2006-09-25 15:54:48 · answer #3 · answered by Marie 3 · 1 0

2a + 12 b

if the problem was '3(2a + 4b) -4a

-10a -12b

if the problem was '-3(2a +4b) - 4a

Do not use the answers given by others unless they match one of these, choose which problem was the correct one. Trust me, i've taken college calc classes.

2006-09-25 15:52:44 · answer #4 · answered by leiter_1 1 · 0 2

I am not sure which one you mean.

3(2a + 4b) - 4a = 6a + 12b - 4a = 2a + 12b = 2(a + 6b)
-3(2a + 4b) - 4a = -6a - 12b -4a = -10a - 12b = -2(5a + 6b)

2006-09-25 15:52:31 · answer #5 · answered by buaya123 3 · 0 2

- 3(2a + 4b) - 4a
Use the distributive property:
(-6a+-8b)-4a
Now, combine like terms (subtract the -4a):
-2a+8b
Simplify:
-2 (a-4b)

2006-09-25 15:53:18 · answer #6 · answered by Anonymous · 0 1

- 3(2a + 4b) - 4a
=-3*2a+(-3)*4b-4a
=-6a-12b-4a
=-10a-12b
=-2(5a+6b)

2006-09-25 16:21:42 · answer #7 · answered by Anonymous · 0 0

- 3(2a + 4b) - 4a?

-6a - 12ab - 4a

-10a - 12ab

2a(-5 - 6b) < -- the answer I think

2006-09-25 15:59:56 · answer #8 · answered by newyorkrose9 3 · 0 0

-3(2a + 4b) - 4a
= -6a - 12b - 4a
= -6a-4a -12b
=-10a - 12b
= - 2( 5a + 6b)

2006-09-25 23:31:53 · answer #9 · answered by ayie 2 · 0 0

multiply the 3 by everything so
6a+12b-4a

2006-09-25 15:53:19 · answer #10 · answered by calientechickspicy 2 · 0 1

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