Question

EXERCISE 4.2
(ü) y2 - yz - 5y + 5z.
(ii) 5p2 – 8pg - 10p + 169.
(ii) x3 - 3x2 + x - 3.
(ii) Зах — бау – 8by + 4bx.
in a (a - 2b - c) + 2bc.
(ii) y2 – xy (1 – x) - 13.
4
6
7
Factorise the following (1 to 13):
1
(1) x2 + xy - x - y
2
(1) 5xy + 7y - 5y2 - 7x
3 (1) 22b - ab2 + 3a - 3b
) 6xy2 – 3xy - 10y + 5
5 (1) 1 - a - b + ab
(1) x2 + xy (1 + y) + y3
(1) ab2 + (a - 1)b - 1
(ii) 2a – 4b – xa + 2bx.
8
5ph - 10 gk + 2rph - 4grk
(ii) x2 – x(a + 2b) + 2ab.
9 (1) ab (x2 + y2) – xy (a2 + b2)
(ii) (ax + by)2 + (bx - ay).
10 ly @ + ab (1 - 2a) - 262
(ii) 3x2y – 3xy + 12x – 12.
Hint. (i) 3 is a common factor. First take 3 outside.
11 a2 + ab2 - abc-b2c + axy + bxy.
12 ax2 – bx2 + ay2 – by2 + az2 – bz2.
13 x-1 - (x - 1)2 + ax - a.
2 DICCIDONO
IVIO
Anna​

Answer 1

Answer:

475m2

Step-by-step explanation:

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