5. Expand using formula : ( 7m - 4)2
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Answer:
The modern fabrics formed by unstitched pieces of fabric are Saree, dhoti, lungi and turban.
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Step-by-step explanation:
(a - b)²=a²-2ab+b²
(7m - 4)²=(7m)²-2×7m×4+(4)²
=49m²-56m+16
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