Factorise 12x+y^2-z^2-6xy+20yz-6zx
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6
see this attachment sis
Cloth left with Tina = 20m 5cm - 4m 50cm
= (19m + 1m + 5cm) - (4m + 50cm)
= (19m + 100cm + 5cm) - (4m + 50cm)
= 19m + 105cm - 4m - 50cm
= 15m + 55cm
= 15m 55cm
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Answered by
39
Step-by-step explanation:
175 x 175 +2 x 175 x 25 + 25 x 25 = (175)2 + 2 (175) (25) + (25)2
= (175 + 25)2
[Because a2+ b2+2ab = (a+b)2 ]
= (200)2
= 40000
So, 175 x 175 +2 x 175 x 25 + 25 x 25 = 40000.
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