Question

QUESTION BELOW ! PLEASE PLEASE PLEASE PLEASE HELP ME ON THIS.

Answer 1

He violated the rule for adding radical expressions. The rule is that you add radicals that have the same radicand by adding the coefficients.

Answer 2

1. Nakim did not study enough
2. \[3\sqrt(2x)+x*\sqrt(8x)-5\sqrt(18x)=3\sqrt(2x)-2x*\sqrt(2x)-15\sqrt(2x)=-2x*\sqrt(2x)-12\sqrt(2x)\]\[-2*\sqrt(2x)*(x+6)\]

Answer 3

oh, made a mistake should be\[+2x*\sqrt(2x)\]