CSEC Maths - January 2022 (Question 7) - Terry David

[@danieltri7883]

Sir in part c y did u change the plus sign into a minus? is there a reason for doing so?

[@phay9929]

I was wondering the same thing.

[@farohgamingg3624]

@@phay9929 same

[@farohgamingg3624]

same

[@ayannalewis8470]

P=6n+2 ,DP=36,8n-(6n+2)=36

[@elvisramdhanie5424]

where u get the plus2 in formula?

[@farohgamingg3624]

sir why did you change the positive sign into a minus for part c

[@wright3460]

The bracket Is being multiplied by negative one hence positive 2 times negative one is negative 2

[@ayannalewis8470]

8n -6n =36+2,2n=38÷2=19

[@ayannalewis8470]

P=6n+2 , P =86

[@jahlavasomersall6977]

nice working sir

[@jahlavasomersall6977]

good day sir

[@ayannalewis8470]

8n + 6n+2

[@ayannalewis8470]

D - P D=8n

[@ayannalewis8470]

Afternoon sir

[@ayannalewis8470]

Good morning sir

[@ayannalewis8470]

n=14

[@butterflygirl4771]

❤❤❤

[@ayannalewis8470]

Afternoon sir