Simplify 1) root 45 - 2 root 20 +4 Root 5
Answers
Answered by
0
Answer:
Your answer is 3√5
Step-by-step explanation:
√45-2√20+4√5
√(3×3×5) - 2√(2×2×5) +4√5
3√5 - (2×2)√5 + 4√5
= 3√5 - 4√5 + 4√5
= 3√5 ........... Become: (-4√5 + 4√5) =0
Answered by
1
Answer:
3√5 is anwer
Step-by-step explanation:
=√45 -2√20 +4√5
=√3×3×5 -2√2×2×5 + 4√5
=3√5 -2×2√5 +4√5
=3√5 -4√5 +4√5
=3√5 answer
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