Question

(4+2root2) (4+2root2​

Answer 1

Answer:

$(4 + 2 \sqrt{2} )(4 + 2 \sqrt{2} ) \\ = {(4 + 2 \sqrt{2} )}^{2} \\ {(x + \sqrt{y} )}^{2} = {x}^{2} + 2x \sqrt{y} +( \sqrt{y} ) {}^{2} \\ {(4)}^{2} + (2 \times 4 \times 2 \sqrt{2} ) + {( \sqrt{2}) }^{2} \\ = 16 + 16 \sqrt{2} + \sqrt{4} \\ = 16 + 16 \sqrt{2} + 2$

Answer 2

$16 + 8+ 2 = 26$