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(7p – 5q)2+ 140pq = (7p + 5q)2
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Answered by
10
Answer:
(7p-5q)²+140pq=(7p+5q)²
[(7p)²-2*7p*5q+(5q)²]+140pq=(7p)²+2*7p*5q+(5q)²
49p²-70pq+25q+140pq=49p²+70pq+25q²
49p²-70pq+140pq+25q=49p²+70pq+25q²
49p²+70pq+25q=49p²+70pq+25q²
L.H.S.=R.H.S.
Hence, it is true that (7p-5q)²+140pq=(7p+5q)²
Answered by
0
Answer:
7p-5q)²+140pq=(7p+5q)²
Step-by-step explanation:
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