Rs aggrawal class 8 ex 6e
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q19
c 625
4xsq+20x+25
2xsq+2(2x)(5)+(5sq)
2x+(5sq)
2(10)+5sq
20+5sq
625
c 625
4xsq+20x+25
2xsq+2(2x)(5)+(5sq)
2x+(5sq)
2(10)+5sq
20+5sq
625
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