Question

= 6 or -54
avera
Since x is the speed of the stream, it cannot be negative. So, we ignore there a
Find the roots of the following quadratic equations, if they exist, by the methodol
-48 +60
2
Express
Bangal
, .
the av
Therefore, x=6 gives the speed of the stream as 6 km/h.
lofth
sides
EXERCISE - 5.3
1.
liag
the square:
i 2x²+x-4=0
ii
. 4x2+45x+3 = 0
j. 5r? – 7x – 6 = 0
iv. x² +5= -6x
pol
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