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Jobisdone [24]
3 years ago
10

Plz answer for 20 pts

Mathematics
2 answers:
Marina86 [1]3 years ago
6 0

Answer:

6) \: \: \sqrt{3} + 4 \sqrt{3} \: = \: 5\sqrt{3}

7) \: \: 3\sqrt{5}+ 6\sqrt{45} = 3\sqrt{5}+6\sqrt{9} \! \cdot \! \sqrt{5}

= 3\sqrt{5} + 6\! \cdot \! 3 \! \cdot \!  \sqrt{5}=3 \sqrt{5} + 18 \sqrt{5} = 21\sqrt{5}

KATRIN_1 [288]3 years ago
5 0

Answer to Problem 1: 5√3

Answer to Problem 2: 21√5

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