Question

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Answer 1

Solution for question 5. a.

`(4 √(3) + 3 √(2) )(4 √(3) - 3 √(2) )`

By using formula,

`(a + b)(a - b) = {a}^(2) - {b}^(2) \: \: we \: get`

`(4 √(3) + 3 √(2) )(4 √(3) - 3 √(2) ) \\ = (4 √(3))^(2) - (3 √(2) ) ^(2) \\ = (4 √(3) * 4 √(3) ) - (3 √(2) * 3 √(2) ) \\ = (4 * 4 * √(3) * √(3) ) - (3 * 3 * √(2) * √(2) ) \\ = (16 * 3) - (9 * 2) \\ = 48 - 18 \\ = 30`

Answer:

30