solve for x: -4+-1+....+x=437
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2
x = 2+5+..............47+50
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msprockz724p475y9:
where? then?
iam unable to..they say i have to solve 4 answers
hi
hi
I'm class 10
only
which subject u like the most
and thorough of it
Answered by
1
a= -4
d= -1-(-4)
-1+4
3
n= l-a/d + 1
x+4/3 +1
x+7/3
Sn = n/2( a+l)
437 = n/2(-4+x)
874 = x+7/3 ( x-4)
2622 = x2 + 7x -4x -28
x2 + 3x - 2650 = 0
(x+53) ( x-50) = 0
x=. -53 or 50
since d is positive x= 50
d= -1-(-4)
-1+4
3
n= l-a/d + 1
x+4/3 +1
x+7/3
Sn = n/2( a+l)
437 = n/2(-4+x)
874 = x+7/3 ( x-4)
2622 = x2 + 7x -4x -28
x2 + 3x - 2650 = 0
(x+53) ( x-50) = 0
x=. -53 or 50
since d is positive x= 50
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