how do you simplify.. 3(2a - b + 4c) + 2 (a - 2b + c)?

Question

am not very good at maths. can you please help. thanks

Answer 1

You multiply the brackets out and then add (or subtract) the like terms

So if you expand it out first - the first bracket will give you

6a - 3b + 12 c

and then you add the contents of the second bracket

You should wind up with a big long row of a's b's and c's which you can add or subtract from each other to get your answer

Answer 2

a^2+ 2b = 6 ------------(a million) b^2+ 4c = – 7 -----------(2) c^2+ 6a = –13 --------- (3) alongside with 3 equations: a^2 + b^2 + c^2 + 6a + 2b + 4c = –14 or a^2 + b^2 + c^2 + 6a + 2b + 4c + 14 = 0 you should set up the words to variety desirable sq. (a^2 + 6a + 9) + (b^2 + 2b + a million) + (c^2 + 4c + 4) = 0 (a + 3)^2 + (b + a million)^2 + (c + 2)^2 = 0 equating each and every and each bracket to 0 (a + 3)^2 = 0 (b + a million)^2 = 0 & (c + 2)^2 = 0 subsequently a = – 3, b = –a million & c = – 2 putting the values of a, b, & c interior the a^2+b^2+c^2 a^2 + b^2 + c^2 = (– 3)^2 + (–a million)^2 + (–2)^2 = 9 + a million + 4 = 14

Answer 3

Just take it step-by-step:
3(2a - b + 4c) + 2(a - 2b + c)

Distribute the 3 and the 2:
6a - 3b + 12c + 2a - 4b + 2c

Combine like terms:
6a - 3b + 12c + 2a - 4b + 2c
6a + 2a - 3b - 4b + 12c + 2c
8a - 7b +14c

Good luck in your classes.

Answer 4

3(2a - b + 4c) +2(a - 2b +c)
= 6a - 3b + 12c + 2a - 4b + 2c
= 8a - 7b + 14c

Hope it helps!!!

Boffdude xxx

(*^_^*)

Answer 5

multiply out each of the brackets - 6a-3b+12c+2a-4b+2c then do the sum - 8a-7b+14c

Answer 6

6a-3b+12c+2a-4b+2c=
8a-7b+14c

Answer 7

Adding to Vals answer (above)

8a -7(b+2c)

Answer 8

you need to multiply out:

8a-7b+14c


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Answer 9

=6a-3b+12c+2a-4b+2c
=8a-7b+14c

Answer 10

6a-3b+12c+2a-4b+2c

Ans: 8a-7b+14c