How do you simplify this into simplest radical form?

2√63 - 6√28 + 8√45

2√63 - 6√28 + 8√45

2√63 - 6√28 + 8√45

= 2√9√7 - 6√4√7 + 8√9√5 {factored each radical}

= 2(3)√7 - 6(2)√7 + 8(3)√5 {evaluated square roots of perfect squares}

= 6√7 - 12√7 + 24√5 {multiplied through}

=

**-6√7 + 24√5**{combined like radicals}

*- Algebra House*