Simplify: (i) (2a + 36 + 4c)(4a² +96² +16c" - 6ab - 12bc-80
(ii) (x – 2y + 32) (x + 4y +972 + 2xy + 6y2 – 3.2)
By using identity evaluate the following:
(1) 73 – 10³ +33 (11) 1+ - -
1 27
If 20 – 34 – 42 = 0, then find 8x9 – 27,9 – 642.
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Simplify:(ii) Answer is x2 + 4xy2 - 12y3 - 6.4y + 3.2x - 2xy - 8y2 - 1944y - 4xy2 - 12y3 + 6.4y + 32x + 128y + 31104 + 64xy + 19.2y2 - 102.4
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