Math, asked by hellobinod054, 1 month ago

Find the value of the expression 5n²-2 when n=2

Answers

Answered by ashutoshghosh319

2

Step-by-step explanation:

Given expression:

5n^2 - 2

When n=2, equation becomes:

5×2^2 - 2

= 5×4 -2

= 20-2

= 18

Answered by tejitakatam

0

Answer:

5(-2)-2=-10-2=-12

5(-2)^2+5(-2)-2=5(4)-10-2=20-12=8

(-2)^3+5(-2)^2+5(-2)-2=-8+5(4)-10-2=-8+20-12=-12-12=-24

Step-by-step explanation:

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