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Chen
Mathematics
2 January, 10:17
N^2 + 5n - 1 evaluate the expression when n = - 6
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Simone Bean
2 January, 10:20
0
5
Step-by-step explanation:
1) N is equal to - 6 and you are challenge to find the value in the expression n²+5n - 1.
so we have:-
n = - 6
the expression is n²+5n-1
2) next we substitute the value of n = - 6 in the expression n²+5n-1. this means wherever we see 'n' in the expression, we replace it with ' - 6 ' so instead of writing n we will write the value - 6. thus we have:-
(-6) ² + 5 (-6) - 1
36 + (-30) - 1
36-30-1
5
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Thomas Archer
2 January, 10:32
0
5
Step-by-step explanation:
substitute n=-6 into the expression
therefore, (-6) ^2+5 (-6) - 1=36-30-1
=5
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