2.
1С
Factorise each of the following using algebi
identities.
(a) 25c2 - 10c + 1
(c) 982 – 24s + 16
(b) k? – 4k +4
(d) 100t2 – 140t + 49
(e) 9x2 - 48xy + 64y? (f) s?t? – 16st +64
Answers
Answered by
3
Step-by-step explanation:
ANSWER
a
2
+
a
2
1
=18
We know,
(a−
a
1
)
2
=a
2
−2(a)(
a
1
)+(
a
1
)
2
=>(a−
a
1
)
2
=18−2
=>(a−
a
1
)
2
=16
=>(a−
a
1
)=±
16
=>(a−
a
1
)=±4
Now,
a
3
−
a
3
1
=(a−
a
1
)(a
2
+a(
a
1
)+
a
2
1
)
=>a
3
−
a
3
1
=(a−
a
1
)(a
2
+1+
a
2
1
)
=>a
3
−
a
3
1
=(±4)(18+1)
=>a
3
−
a
3
1
=±76
Answered by
6
Step-by-step explanation:
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