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hartnn
 one year ago
Best ResponseYou've already chosen the best response.116 is the square of which number?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1yeah so we have \(x^24^2 \) use the formula \(\Large a^2b^2 = (a+b)(b)\) so \(x^24^2 = ...?\)

Diana.xL
 one year ago
Best ResponseYou've already chosen the best response.0my answer would be c?

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1HINT: this is the exact same question as last time

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1u can write that as \[x^24^2\] nd then use the identity\[a^2b^2=(a+b)(ab)\]

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1\(x^216=0\implies x^2=16\implies x=\pm\sqrt{16}=\pm4\)

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1remember, that when you induce the square you get two answers.

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1what I mean by that is that when you have x^2=16 you get two answers, but if I ask you what sqrt(16) is, then it is 4
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