Get live Maths 1-on-1 Classs - Class 6 to 12
Ex 12.2, 3 (v) - Chapter 12 Class 7 Algebraic Expressions
Last updated at March 22, 2023 by Teachoo
Ex 12.2
Ex 12.2, 1 (i)
Ex 12.2, 1 (ii) Important
Ex 12.2, 1 (iii)
Ex 12.2, 1 (iv) Important
Ex 12.2, 1 (v) Important
Ex 12.2, 1 (vi)
Ex 12.2, 2 (i)
Ex 12.2, 2 (ii) Important
Ex 12.2, 2 (iii)
Ex 12.2, 2 (iv)
Ex 12.2, 2 (v) Important
Ex 12.2, 2 (vi)
Ex 12.2, 2 (vii) Important
Ex 12.2, 2 (viii) Important
Ex 12.2, 2 (ix)
Ex 12.2, 2 (x) Important
Ex 12.2, 3 (i)
Ex 12.2, 3 (ii) Important
Ex 12.2, 3 (iii)
Ex 12.2, 3 (iv)
Ex 12.2, 3 (v) Important You are here
Ex 12.2, 3 (vi)
Ex 12.2, 3 (vii) Important
Ex 12.2, 3 (viii) Important
Ex 12.2, 4 (a)
Ex 12.2, 4 (b) Important
Ex 12.2, 5
Ex 12.2, 6 (a)
Ex 12.2, 6 (b) Important
Transcript
Ex 12.2, 3 Subtract: (v) –m2 + 5mn from 4m2 – 3mn + 8 (4m2 – 3mn + 8) – (–m2 + 5mn) = 4m2 – 3mn + 8 + m2 – 5mn = 4m2 + m2 − 3mn − 5mn + 8 = m2 (4 + 1) – mn (3 + 5) + 8 = m2 (5) – mn (8) + 8 = 5m2 − 8mn + 8
