# Ex 12.2, 1 (iv) - Chapter 12 Class 7 Algebraic Expressions

Last updated at Sept. 6, 2021 by Teachoo

Last updated at Sept. 6, 2021 by Teachoo

Transcript

Ex 12.2, 1 Simplify combining like terms: (iv) 3a – 2b – ab – (a – b + ab) + 3ab + b – a 3a – 2b – ab – (a – b + ab) + 3ab + b – a = 3a – 2b – ab – a + b – ab + 3ab + b – a = 3a – a – a – 2b + b + b – ab – ab + 3ab = a(3 – 1 – 1) + b (–2 + 1 + 1) + ab (–1 –1 + 3) = a (3 – 2) + b (–2 + 2) + ab (3 – 2) = a (1) + b (0) + ab (1) = a + ab

Ex 12.2

Ex 12.2, 1 (i)

Ex 12.2, 1 (ii)

Ex 12.2, 1 (iii)

Ex 12.2, 1 (iv) You are here

Ex 12.2, 1 (v)

Ex 12.2, 1 (vi)

Ex 12.2, 2 (i)

Ex 12.2, 2 (ii)

Ex 12.2, 2 (iii)

Ex 12.2, 2 (iv)

Ex 12.2, 2 (v)

Ex 12.2, 2 (vi)

Ex 12.2, 2 (vii)

Ex 12.2, 2 (viii)

Ex 12.2, 2 (ix)

Ex 12.2, 2 (x)

Ex 12.2, 3 (i) Important

Ex 12.2, 3 (ii)

Ex 12.2, 3 (iii)

Ex 12.2, 3 (iv)

Ex 12.2, 3 (v)

Ex 12.2, 3 (vi)

Ex 12.2, 3 (vii)

Ex 12.2, 3 (viii)

Ex 12.2, 4 (a) Important

Ex 12.2, 4 (b)

Ex 12.2, 5 Important

Ex 12.2, 6 (a)

Ex 12.2, 6 (b)

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