★Write 4²+5²+20² as a square of a number✍️
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Answer:
21²
Step-by-step explanation:
4²+5²+20²
FORMULA:-[If the product of first two numbers is the third number then adding all equals to Product number(larger number)+1]
=20+1
=21 SO 21²
CHECK:-4²+5²+20²
=16+25+400
=441
=21²
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