Question

factorise 5-20(x+y)^2​

Answer 1

Answer:

$5 - 20(x + y) \\ 5 - 20( {2x }^{2} + 2xy + {y}^{2} ) \\ 5 - 20 {x}^{2} - 40xy - {20x }^{2} \\ - 20 {x}^{2} - 40xy - 20 {x }^{2} + 5$

Answer 2

Question:

$5 - 20(x + y) ^{2}$

Step By Step Explanation:

$5 - 20(x + y) ^{2}$

$5 - (20x - 20y) {}^{2}$

$5 - (20x \times 20x - 20y \times 20y)$

$5 - (400x - 400y)$

$5 - 400x + 400y$

Answer:

$5 - 400x + 400y$

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