factorize i) 4x^2-13x+13
ii) 2x^2-×-1
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Answer:Split the middle term coefficient -13 so that the product of twp parts is 15*2= 30
13 can thus be split as -3-10, Accordingly,
2
x
2
−
13
x
+
15
=
2
x
2
−
3
x
−
10
x
+
15
=
(
2
x
2
−
3
x
)
−
(
10
x
−
15
)
=
x
(
2
x
−
3
)
−
5
(
2
x
−
3
)
=
(
2
x
−
3
)
(
x
−
5
)
Step-by-step explanation:
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