Question

(2^2x5)^2 .............. .

Answer 1

$1) {( {2}^{2} \times 5) }^{2} = {(4 \times 5)}^{2} = {20}^{2} = 400$

$sau$

$2) {( {2}^{2} \times 5)}^{2} = { ({2}^{2} )}^{2} \times {5}^{2} = {4}^{2} \times 25 = 16 \times 25 = 400$

Answer 2

( 2² x 5 )² = ( 4 x 5 )² = 20² = 20 × 20 = 400