Question

expand:k²-49 please answer quickly

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Answer 1

Answer:

k²-49

= (k+7) (k-7) is the answer

Answer 2

${k}^{2} - 49 = {k}^{2} - {7}^{2}$

$\bold { {x}^{2} - {y}^{2} = (x - y)(x + y)}$

${k}^{2} - {7}^{2} = (k - 7)(k + 7)$

Hope this will be helpful.