Question

find the value of the following expression when n= 2
I) 5n-2
ii) 5n2 + 5n -2
iii) n3+ 5n -20​

Answer 1

Answer:

1. 8
2. 28
3. -2

is ur answer dear

Answer 2

Answer:

1) 8

2) 28

3) -2

Step-by-step explanation:

n=2

1) 5n-2

=5×2-2

=10-2

=8

2)5n²+5n-2

=5×2² + 5×2-2

=20+8

=28

3)n³+5n-20

=2³+5×2-20

=8+(-10)

=-2

I didn't get your questions correctly..

but may be my answers will help you