Question

FACTORIES THE FOLLOWING EXPRESSION.
${x}^{2} - 1 - 2y - {y}^{2}$
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Answer 1

Answer:

${x}^{2} - 1 - 2y - {y}^{2} \\ = {x }^{2} - {y}^{2} - 2y - 1 \\ = {x}^{2} - ( {y}^{2} + 2y + 1) \\ = {x }^{2} - (y + 1) {}^{2} \\ = (x + (y + 1) \times (x - (y + 1) \\ = (x + y + 1)x(x - y - 1)$

Step-by-step explanation:

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