thankyou tr I broke my head on algebric identities for so long and then integers were introduced in those sums and after understanding everything I got wrong results just because I didn't know how to subtract and add integers in the middle your explanation was really helpful
Subtraction: Different or same sign but u have to do additive inverse and change sign from SUBTRACTION to ADDITION ONLY Q) What does additive inverse mean? Ans) it means to change the sign of the integer for eg:- 3, AI of 3 is (-3) OR (-4) = 4 Examples : (-3) - (-5) = AI of (-5) = 5 (-3) + 5 = 8 Now thank me later😅
I don't know y they r introducing multiplication in subtraction...now a days most of the teachers r teaching like that only...they r not teaching the subtraction rule 😅
Kyuki bhai teacher ka agar 1 hour ka period hota hai toh usme se 50 minutes or 55 minutes toh woh kaam kar per focus karti hai or 5 to 8 minutes concept explaining aur bacho samach bhi jaaata hai