Question

please See the picture and solve all the maths problems​

Answer 1

Step-by-step explanation:

Note:

• a^m × a^n = a^(m+n)
• a^m/a^n = a^(m-n)
• (a^m)^n = a^(m×n)

5)8^3×8^5×8^6

8^(3+5+6)

8^14

6) ((4^2)^4×4^9)/2^5

(4^8×4^9)/2^5

4^17/2^5

(2^2)^17/2^5

2^34/2^5

2^29

7) (6^-3)^-4

6^12

8) (m^5×m^6)^2

(m^11)^2

m^22

9) (b+2c) - (-3b-4c)

b+2c+3b+4c

4b+6c

2(2b+3c)

10) -7(7x-y) -8(2y-5x)

-49x+7y-16y+40x

-9x-9y

-9(x+y)

11) 1/4(x+8) + 2/5(x-2)

x/4+8/4+2x/5-4/5

x/4+2x/5+2-4/5

(5x+8x)/20 + (10-4)/5

13x/20+6/5

(13x+24)/20

12) -7a-4[-3a+5(-4b-7a)]

-7a-4[-3a-20b-35a]

-7a+12a+80b+140a

145a+80b

5(29a+16b)

I hope all answers are correct