Question

6-4√2/6+4√2 simplify each of the following by rationalising the denominator​

Answer 1

6 - 4√2/6 + √2

6-4√2 6 - 4√2

______ × _______

6 + 4√2 6 - 4√2

(6 - 4√2)²

_______

(6)² - (4√2)²

(6)² + (4√2)² - 2 × 6 × 4√2

_____________________

36 - 32

36 + 32 - 48√2

____________

36 - 32

68 - 48√2

________ = 17 - 12√2

4

Answer 2

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