Question

find the square of (5+8 root3)

Answer 1

let's start

for this we use (a+b)^2 =

a^2 + b^2 + 2ab

square of (5 + 8√3)

= 25 +192 + 80√3

= 217 + 80 √3

hope it helps

Answer 2

$(5 + 8 \sqrt{3} ) {?}^{2}$
$(5 + 8 \sqrt{3) } \times (5 + 8 \sqrt{3} )$
${5}^{2} + {8 \sqrt{3} }^{2} + 2 \times 5 \times 8 \sqrt{3}$
$25 + 64 \times 3 + 10 \times 8 \sqrt{3}$
$25 + 192 + 80 \sqrt{3}$
$217 + 80 \sqrt{3}$
here is your answer .



hope you understand.