Question

2.
Factorise the following by regrouping:
(i) ax - b + ab - X
(ii) 15mn - 6m + 5n - 2
(iii) ax + ay + bx + by (iv) y’+9+9y+y
(v) 5x+10y - 3(x+2y)?
(vi) 14 (3y - 5z) – 21 (5z – 3y)
3​

Answer 1

ANS 2.

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(I) (a - 1)(x + b)

(II) (3m + 1)(5n - 2)

(III) (a + b)(x + y)

(IV) (y + 1)(y + 9)

(V) (x + 2y)(4)

(VI) (7y - 7z)(40)

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