(x-4) (2x+3)=_______
x×x2×x3×x4 = ______
Answers
Answered by
0
Answer:
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Step-by-step explanation:
Mean =
X
ˉ
=
n
x
1
+x
2
+x
3
+.....+x
n
We have been asked for the algebraic sum of the deviations of each of the observations from the mean, i.e. (x
1
−
X
ˉ
)+(x
2
−
X
ˉ
)+(x
3
−
X
ˉ
)+....+(x
n−1
−
X
ˉ
)+(x
n
−
X
ˉ
)=x
1
+x
2
+x
3
+....+x
n
−n
X
ˉ
=n
X
ˉ
−n
X
ˉ
=0
Hence, option 'A' is correct.
Answered by
1
Answer:
(x-4) (2x+3)
x(2x+3) -4(2x+3)
2x^2+3x-8x+3
2x^2-5x+3
x×x××2×x3×x4
x10
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