Simplify:
a) √20x15
b) √96x25
a) √[20x15 ] = √ [ 4 * 5 * x14 * x ] = 2x7√[ 5 x]
b) √ [96x25 ] = √ [ 16 * 6 * x24 * x ] = 4x12√ [ 6x ]