Solve each quadratic equation by factoring. 6n^2-18n-18=6
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Answered by
2
6n²-18n-18-6=0
6n²-18n-24=0
n²-3n-4=0
n²-4n+n-4=0
n(n-4)+1(n-4)=0
(n+1)(n+4)=0
6n²-18n-24=0
n²-3n-4=0
n²-4n+n-4=0
n(n-4)+1(n-4)=0
(n+1)(n+4)=0
Answered by
1
We have , ➯
6n² - 18n - 18 = 6
∵ It is an Quadratic equation , Need to solve it by Factorization method ,
so ,
➱ 6n² - 18n -18 - 6 = 0
➱ 6 ( n² - 3n -3 -1. ) = 0
➱ n² - 3n - 4 = 0
Splitting it now such that when multiply first term and last term we get as the sum of the middle term
[ Here we can see , first and last term 1 × 4 = 4 and Middle term will be , - 4n + n or 4 ×1 = 4
which is equal to the product of first and last term ]
➱ n² -4n + n -4 = 0
➱( n² - 4n ) + ( n-4)
➱ n ( n- 4) + 1 ( n -4)
➱( n + 1) ( n -4 )
Further doing it to get , Its root
➱ n = 1 , 4
➤ Hope this would help you ➤
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