Question

Choose correct option for
Question ). (4+√2) (4+√2)

options
(i) a² + 2b + b2
(ii) a² - 2ab +62
(iii) a²- b²​

Answer 1

Answer:

a=3,b=4

(a+b)²=(3+4)²=49

a²+2ab+b²=9+2×3×4+16=49

a²-b²=3²-4²=9-16=-7

(a+b)(a-b)=(3+4)(3-4)=7×-1=-7

Answer 2

Answer:

(4+ √2) ( 4 + √2)

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

4^2+ (√2)^2 + 2(4)(√2)

16+2 +8√2

18+ 8√2