Question

4a+7b =4a-7b
4c+7d=4c-7d

Answer 1

Answer:

i)14b²

ii)14d²

Step-by-step explanation:

i) 4a+7b= 4a-7b

4a-4a=-7b-7b

0= 14b²

ii) 4c+7d=4c-7d

4c-4c=-7d-7d

0= 14d²