Question

2. Factorise the following expressions.
7x42 (ii) 6 - 129
(ii) 7a + 14a​

Answer 1

(I) 7×42= 294

(ii) 6-129= -123

(III) 7a+14a= 21 a

Answer 2

Answer:

first multiply the first term

secondly minus the second term

thirdly plus the third term

them join them all

and apply the formula of factorisation

now answer is over

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please mark me as brainless