what are the roots of ײ - 121 = 0
Answers
Answered by
0
Answer:
How do you solve
x
2
=
121
?
Algebra Comparing Methods for Solving Quadratics
1 Answer
Perihelion
Mar 10, 2018
x
1
=
−
11
,
x
2
=
11
Explanation:
Move the constant to the left and change its sign
x
2
−
121
=
0
Using
a
2
−
b
2
=
(
a
−
b
)
(
a
+
b
)
, Factor the expression
(
x
−
11
)
(
x
+
11
)
=
0
When the product of factors equals 0, at least one factor is 0
x
−
11
=
0
x
+
11
=
0
Solve both equations for
x
x
=
11
x
=
−
11
The final solutions are
∴
x
1
=
−
11
,
x
2
=
11
Answer link
Answered by
0
Answer
x²-121=0
x²=0+121 (transpose 121 to right hand side)
x²=121
x=√121
x=11
step by step answers has been sent to you if you satisfy mark me as a brainlest
Similar questions
Geography,
1 day ago
History,
1 day ago
Physics,
1 day ago
Science,
2 days ago
Social Sciences,
8 months ago