# Ex 12.2, 3 (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, 3 Subtract: (iv) a (b – 5) from b (5 – a) b (5 – a) – a (b – 5) = 5b – ab – ab + 5a = 5a + 5b – ab – ab = 5a + 5b – ab (1 + 1) = 5a + 5b – ab (2) = 5a + 5b – 2ab

Ex 12.2

Ex 12.2, 1 (i)

Ex 12.2, 1 (ii)

Ex 12.2, 1 (iii)

Ex 12.2, 1 (iv)

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) You are here

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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