Question

Simplifying(√5 + √7)2

Answer 1

Answer:

${( \sqrt{5} + \sqrt{7}) }^{2} \\ = {( \sqrt{5} )}^{2} + {( \sqrt{7} )}^{2} + 2 \sqrt{5} \sqrt{7} \\ = 5 + 7 + 2 \sqrt{35} \\ = 12 + 2 \sqrt{35}$

Answer 2

Answer:

Step-by-step explanation:

[ I don't know understand whether you have asked, (√5 + √7) x 2 ( or ) (√5 + √7)^2 ]

But, I will answer both the questions.

(√5 + √7)2

= (√5 + √7) x 2

= 2√5 + 2√7

(√5 + √7)^2

= (√5)^2 + (√7)^2 + 2 (√5) (√7)

= 5 + 7 + 2√35

= 12 + 2√35