-2a plus 3b
4a + 3c - 2b - c + a - b = 5a - 3b + 2c
Gathering like terms together, this is equal to 5a + 3b + 7c.
(5a - 4b) + (2c - 3b - 6c) + a =5a - 4b + 2c - 3b - 6c + a =(5a + a) + (-4b - 3b) + (2c - 6c) =[ 6a - 7b - 4c ].
8a+2b
-2a plus 3b
4a + 3c - 2b - c + a - b = 5a - 3b + 2c
It is an algabraic expession without knowing whether or not 2b and 3a are plus or minus
Gathering like terms together, this is equal to 5a + 3b + 7c.
(5a - 4b) + (2c - 3b - 6c) + a =5a - 4b + 2c - 3b - 6c + a =(5a + a) + (-4b - 3b) + (2c - 6c) =[ 6a - 7b - 4c ].
8a+2b
-6(a-3b-9c)
The given expression can be simplified to: 3b-a
6+7a+6b
no
6a+7b
This is not a difficult factorisation, as it is merely a normal factorisation with "a" stuck on the end of each number. 25a(2) - 20ab + 4b(2) (2b-5a)(2b-5a) This is: 2bx2b=4b(2) 2bx-5a=-10ab (twice) -5ax-5a=25a