Question

Simplify : (√3 + √11) power 2 + (√3 − √11) power 2

Answer 1

Answer:

28

Step-by-step explanation:

(√3+√11)²+(√3-√11)²

3+11+2*√3*√11 + 3+11-2*√3*√11

3+11+3+11

28

Answer 2

Answer:

28

Step-by-step explanation:

(√3 + √11)^2+ (√3 − √11)^2=

(a+b)^2=a^2+2ab+b^2

(a-b)^2=a^2-2ab+b^2

(√3 + √11)^2=   3+√66+11

14+√66

(√3 − √11)^2= 3 -  √66+11

14-√66

14+√66  +14-√66 =28