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Question : 69 of 178
Marks:
+1,
-0
Solution:
(e)
(i)2x2+7x+5=02x2+2x+5x+5=02x(x+1)+5(x+1)=0(2x+5)(x+1)=0x
=,1(ii)
y2+y–6=0y2+3y–2y–6=0y(y+3)–2(y+3)=0(y+3)(y–2)=0y = – 3, 2
No relation can be established.
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