Question

Factorise
$6 {a}^{3} - 54a {b}^{2}$
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Answer 1

Answer:

$6 {a}^{3 } - 54a {b}^{2} \\ = 6a( {a}^{2} - 9 {b}^{2} ) \\ = 6a( {a}^{2} - {(3b))}^{2} \\ = 6a(a + 3b)(a - 3b)$

Answer 2

Answer:

Lateral surface area in a solid is the sum of the surface areas of all its faces excluding the base and top of the solid