Question

Simplify the following expression if k=-4 and n =4.
$- 3( {k}^{2} + 2n)$
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Answer 1

Answer: -72

Step-by-step explanation:

$-3(k^2+2n)\\-3((-4)^2+2(4))\\-3(16+8)\\-3(24)\\-72$