asked 5.5k views
1 vote
Simplify the expression 5√2 + √18

asked
User Frezq
by
8.2k points

2 Answers

4 votes

Answer:


\large\boxed{5\sqrt2+√(18)=8\sqrt2}

Explanation:


5\sqrt2+√(18)=5\sqrt2+√(9\cdot2)\\\\\text{use}\ √(ab)=√(a)\cdot√(b)\\\\=5\sqrt2+\sqrt9\cdot\sqrt2=5\sqrt2+3\sqrt2=(5+3)\sqrt2=8\sqrt2

2 votes

Answer:

8√2

Explanation:

Simplify √18 which is 3√2

5√2+3√2=8√2

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