n2 = 10n + 56 Subtract (10n + 56) from each side: n2 - 10n - 56 = 0 Now you have something on the left side that you can factor: (n - 14) (n + 4) = 0 n = +14 n = - 4
7m2 + 6.5n - 4n + 2.5m2 - n = 9.5m2 + 1.5n
n2 - 100 = (n + 10)(n - 10)
Number: NPercent: PAnswer: AN-(P/100*N)=AYou do the P/100 to get a decimal value instead of a %Example56 minus 25%N=56P=25 (twenty five percent)56 - (0.25 * 56) =56 - (14) = 42Fifty six minus twenty five percent is forty two.
1: (n-2)2 2: n-22 3: n+2n-2 4: n-2n+2 If I understand your question correctly (it is really confusing) then none of the expressions 2 3 or 4 equal the first expression.
n2 = 10n + 56 Subtract (10n + 56) from each side: n2 - 10n - 56 = 0 Now you have something on the left side that you can factor: (n - 14) (n + 4) = 0 n = +14 n = - 4
7m2 + 6.5n - 4n + 2.5m2 - n = 9.5m2 + 1.5n
n2 - 100 = (n + 10)(n - 10)
(n - 4)(n - 12)
(n + 4) and (n - 5) are factors of n^2 - n - 20 They cannot be factored further.
First take out a factor of 4, giving: 4(n2+6.5n-8) Next you can use the completing the square method: 4( (n+3.25)2-(3.25)2 - 8 ) Which can be simplified to: 4( (n+3.25)2 - 18.5625)
Number: NPercent: PAnswer: AN-(P/100*N)=AYou do the P/100 to get a decimal value instead of a %Example56 minus 25%N=56P=25 (twenty five percent)56 - (0.25 * 56) =56 - (14) = 42Fifty six minus twenty five percent is forty two.
square n x n = n2
1: (n-2)2 2: n-22 3: n+2n-2 4: n-2n+2 If I understand your question correctly (it is really confusing) then none of the expressions 2 3 or 4 equal the first expression.
Suppose you have a number n which is not a square. Suppose now that a is a factor of n ie there is some integer b, such that a*b = n. Now since n is not a square, b is not the same as a. Thus for every factor a, there is another factor b ie the factors come in pairs. Therefore, there are an even number of factors.
n2 - 100t write t = (√t)2 = n2 - (10√t)2 = (n - 10√t)(n + 10√t)
n(2n - 1)(2n + 7)