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Byju's Answer
Standard X
Mathematics
Solving a Quadratic Equation by Completion of Squares Method
Divide x2-2...
Question
Divide
x
2
−
23
x
2
+
142
x
−
120
by
(
x
−
1
)
by long division method.
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Solution
x
−
1
)
x
3
−
23
x
2
+
142
x
−
120
(
x
2
x
3
−
x
2
________________________________
x
−
1
)
−
22
x
2
+
142
x
−
120
x
(
−
22
x
−
22
x
2
+
22
x
_________________________________
x
−
1
)
120
x
−
120
(
120
120
x
−
120
_________________________________
0
x
3
−
23
x
2
+
142
x
−
120
=
(
x
−
1
)
(
x
2
−
22
x
+
120
)
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1
Similar questions
Q.
Factorise
x
3
−
23
x
2
+
142
x
−
120
by using factor theorem.
Q.
x
3
− 23x
2
+ 142x − 120