Question

Simplify 6root45+4root20+root405/ root1050

Answer 1

(6√45 +4√20 +√405)÷√1050

6√45=6×3√5 =18√5

4√20=4×2√5 =8√5

√405=9√5

√1050=5√42

Hence, (18√5 +8√5 +9√5)÷(5√42)

=35√5÷(5√42)

=7√5÷√42

=√(35÷6)

≈2.4152

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