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Byju's Answer
Standard X
Mathematics
Roots of Quadratic Equation
Find the Zero...
Question
Find the Zeroes of the polynomial
p
(
x
)
=
x
2
−
3
x
+
2
.
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Solution
P
(
x
)
=
x
2
−
3
x
+
2
Put
p
(
x
)
=
0
, For finding zeroes of the given polynomial
⟹
x
2
−
3
x
+
2
=
0
⟹
x
2
−
x
−
2
x
+
2
=
0
⟹
x
(
x
−
1
)
−
2
(
x
−
1
)
=
0
⟹
(
x
−
2
)
,
(
x
−
1
)
=
0
⟹
x
−
2
=
0
,
x
−
1
=
0
⟹
x
=
2
,
x
=
1
⟹
2
,
1
are zeroes of the
equation
p
(
x
)
=
x
2
−
3
x
+
2
.
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Similar questions
Q.
Draw the graph for the polynomial
p
(
x
)
=
x
2
−
3
x
+
2
and find the zeroes from the graph.
Q.
If 2 is a zero of the polynomial
p
(
x
)
and one zero is half of the other zero. Which of the following expressions can
p
(
x
)
be?
Q.
Verify that
(i) 1 and 2 are the zeros of the polynomial p(x) = x
2
− 3x + 2.
(ii) 2 and −3 are the zeros of the polynomial q(x) = x
2
+ x − 6.
(iii) 0 and 3 are the zeros of the polynomial r(x) = x
2
− 3x.
Q.
Draw the graph of
p
(
x
)
=
x
2
+
3
x
−
4
and find zeroes.
Verify the zeroes of the polynomials
Q.
The zeroes of the polynomial p(x) = x
2
− 3x are
(a) 0, 0
(b) 0, 3
(c) 0, −3
(d) 3, −3
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