3 years ago

Simplify the expression 5√2 + √18

Mathematics

2 answers:

ivanzaharov [21]3 years ago

6 0

Answer:

$\large\boxed{5\sqrt2+\sqrt{18}=8\sqrt2}$

Step-by-step explanation:

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

Naddik [55]3 years ago

4 0

Answer:

8√2

Step-by-step explanation:

Simplify √18 which is 3√2

5√2+3√2=8√2

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