Help me pllllllllzzzzzzzzzzzz?

Question

show your work,Evaluate each problem when a = 4, b = -2 and c = -1.

a) 2(b + c)

b) ab - c

c)3b over c

d) (a + c) + (b + a)

e) 3a2

Answer 1

a. 2(b+c)

2b+2c

2(-2)+2(-1)

-4+-2

-6

b. ab - c

(4)(-2) - (-1)

-8 -(-1)

-8+1

-7

c. (3b)/c

[(3)(-2)]/-1

(-6)/(-1)

6

d.  (a+c)+(b+a)

(4+-1)+(-2+4)

(3)+(2)

5

e. 3a2

(3)(4)(2)

(3)(8)

24

Answer 2

a) 2(b + c)

2 (-2 + -1) = -3

2 x -3 = -6

= -6

b) ab - c

4 x -2 - -1 --cancels out?

idk...

too lazy to do the rest...

Answer 3

a) 2bc b)3abc c) 3a(c2) d) ac2a e) 6a

Answer 4

a) -6

b)-9

c) +6

d) +5

c)  +24