(i) 150 – 6a2
(ii) 32x2 – 18y2
Answer :
(i) 150 – 6a2
Take out common in all terms,
6(25 – a2)
6(52 – a2)
We know that, a2 – b2 = (a + b) (a – b)
So, 6(5 + a) (5 – a)
(ii) 32x2 – 18y2
32x2 – 18y2
Take out common in all terms,
2(16x2 – 9y2)
2((4x)2 – (3y)2)
We know that, a2 – b2 = (a + b) (a – b)
2(4x + 3y) (4x – 3y)
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