Value of Expression [a(a³+ a + 1) + 5] for a = 1 is
Answers
Answered by
0
Step-by-step explanation:
Given expression is 1−27a
3
We can write the above expression as:
=1
3
−(3a)
3
Using the formula, a
3
−b
3
=(a−b)(a
2
+ab+b
2
), we get:
⇒(1−3a)[1
2
+1×3a+(3a)
2
]
∴ (1−3a)(1+3a+9a
2
)
Answered by
0
Answer:
8
Step-by-step explanation:
a =1
[a (a³ + a + 1)+ 5]= [1* (1³ + 1 + 1)] + 5
=[1 * 3 + 5]
= 3 + 5
= 8
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