Question

please solve it neatly​

Answer 1

hope this help you.....

Answer 2

Answer:

a) 15+3√5+5√3+√15

b) identity 3 (x^2 +y^2) = 5^2-√5^2 = 25+5√5-5√5-5

c) identity 1 x^2+2xy+y^2 = 7^2+2*7*√3+√3^2

= 49+14√3+3

= 52+14√3

d) identity 3 = 11+√77-√77-7

Step-by-step explanation:

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