Q: What does n equal in n2 equals 225?

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If you mean: n^2 -13n +42 then it equals (n -6)(n -7) when factored

n x n2 = n3

n2 + 9n + 18 = (n + 6)(n + 3)

If: n2 = 19 Then: n = the square root of 19.

n2 = 20 + n so n2 - n - 20 = 0 that is (n - 5)(n + 4) = 0 so that n - 5 = 0 or n + 4 = 0 n = 5 or n = -4

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n= sqrt 225 = 15

If you mean: n^2 -13n +42 then it equals (n -6)(n -7) when factored

Conditional statement: If n2 equals 64, then n equals 8, where n2 equals 64 is the hypothesis, and n equals 8 is the conclusion. In order to obtain the converse of the conditional we reverse the 2 clauses, then the original conclusion becomes the new hypothesis and the original hypothesis becomes the new conclusion. So that, Converse: If n equals 8, then n2 equals 64.

n x n2 = n3

n2 + 9n + 18 = (n + 6)(n + 3)

If: n2 = 19 Then: n = the square root of 19.

(n + 4)(n - 4)

n = +5 or -5

n2 = 20 + n so n2 - n - 20 = 0 that is (n - 5)(n + 4) = 0 so that n - 5 = 0 or n + 4 = 0 n = 5 or n = -4

Sn = n2 S12 = 122 = 144.

equation works for n = 0 and n = 1 as factors are n and n - 1

so 3n2 = 15 ie n2 = 5 so n = sqrt 5