Question

√7-2/√7+2 by rationalizing denominator​

Answer 1

Answer:

(√7+2)(1-1)/(√7+2)

(√7+2)•0/(√7+2)

0/(√7+2)

0

Answer 2

Answer:

11-14√7/3

Step-by-step explanation:

√7-2/√7+2

=[√7-2/√7+2] × [√7-2/√7-2]

=(√7-2)^2/(√7+2)(√7-2)

=(√7)^2 - 2×√7×2 + 2^2/(√7)^2-(2)^2

=7-14√7+4/7-4

=11-14√7/3

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