Question

the value of x3 - 9 at x=3 is:

1) -6
2) 0
3) 1
4) 18


please tell me with the sum​

Answer 1

Given

$x {}^{3} - 9$

Value For'x'

= 3

Solution

$x {}^{3} - 9 \\ \\ = (3) {}^{3} - 9 \\ \\ = 27 - 9 \\ \\ = 18$

Hope This Helps

Answer 2

Given :   x³ - 9  

To Find :   Value at x = 3

1) -6

2) 0

3) 1

4) 18

Solution:

x³ - 9  

Substitute x = 3

= 3³ - 9

3³ = 3 * 3 * 3  = 27

= 27 - 9

= 18

Value of   x³ - 9    is 18 at x = 3

Correct option is   4)  18  

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