Question

(5 − √13 ) (5 + √13 ) b) (√5 – 7 )

2​

Answer 1

Given,

=(5-√13)(5+√13)

=5²-√13²

=25-13

=12

(√5-7)

so what's means by 2

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Answer 2

Answer:

a)(5 − √13 ) (5 + √13 )   answer for 1st part

=5^2-√13^2

=25-13

=12

b) (√5 – 7 )                   incomplete

Step-by-step explanation: