Simplify 4√81-8√343+155√32+√225
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Answer:
51-56√7+620√2
Step-by-step explanation:
4×√81=4×9=36
8×√343=8×√(7×49)=8×7√7=56√7
155√32=155×√16×2=155×4√2=620√2
√225=15
therefore 36-56√7+620√2+15
answer is 51-56√7+620√2
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