If x2 = 121
What is x = ?
Answers
Answered by
1
Step-by-step explanation:
Explanation:
As
x
2
and
121
=
11
2
are both squares of
x
and
11
and there is minus sign between their squares,
we can use the identity
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
observe that factors of difference of squares
a
2
and
b
2
are sum of
a
and
b
and difference of
a
and
b
and then factors are sum of
x
and
11
and difference of
x
and
11
i.e.
x
2
−
121
=
(
x
+
11
)
(
x
−
11
)
Answered by
1
Answer:
x = 60.5
Step-by-step explanation:
when 2 will goto RHS :
x = 121/2
x = 60.5
Artesh:
in x2, 2 is square
oh
11
hi
yes
11 because the square root of 121 is 11
thanks
yes
Pls mark me braines
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