Mathematics: If a=6, which of the following is equal to a^-2 ?

(i) f(-3) = (-3)^2+2(-3)+1So9-6+1=10-6=4(ii)f(5)= (5)^2+2(5)+1so25+10+1=36(iii) Please check this question if it s correct or not...

If a=6, which of the following is equal to a^-2

biancabahena04

12.04.2020

Express with a positive exponent using
a^-n = 1/a^n

and that would give you
1/6^2

so the answer would be c.

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LanBon02

01.08.2020

(i) f(-3) = (-3)^2+2(-3)+1

9-6+1=10-6=4

(ii)f(5)= (5)^2+2(5)+1

25+10+1=36

(iii) Please check this question if it's correct or not

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