(1)√18-√9/2 (2)a²√8a+3a√50a³ (3)√18-√32+√2 (4)(√45+√18)-(√8-√125)

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(1)√18-√9/2 (2)a²√8a+3a√50a³ (3)√18-√32+√2 (4)(√45+√18)-(√8-√125)
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(1)√18-√9/2 (2)a²√8a+3a√50a³ (3)√18-√32+√2 (4)(√45+√18)-(√8-√125)
(1)√18-√9/2 (2)a²√8a+3a√50a³ (3)√18-√32+√2 (4)(√45+√18)-(√8-√125)

(1)√18-√9/2 (2)a²√8a+3a√50a³ (3)√18-√32+√2 (4)(√45+√18)-(√8-√125)
(1)√18-√9/2
=3√2-3/2√2
=3/2√2
(2)a²√8a+3a√50a³
=2a²√2a+15a²√2a
=17a²√2a
(3)√18-√32+√2
=3√2-4√2+√2
=0
(4)(√45+√18)-(√8-√125)
=3√5+3√2-2√2+5√5
=8√5+√2

(1)√18-√(9/2) =3√2-3/√2=3√2-3√2/2=3√2/2
(2)a²√(8a)+3a√(50a³) =2a²√(2a)+15a²√(2a)=17a²√(2a)
(3)√18-√32+√2 =3√2-4√2+√2=0
(4)(√45+√18)-(√8-√125)=(3√5+3√2)-(2√2-5√5)=8√5+√2

(1)√18-√9/2
=)√18-√18
=0