Question

factories: x2+6x+5-4y-y2​

Answer 1

Answer:

$(x+3)^2 - (y+2)^2$

Step-by-step explanation:

∵ $5 = 9-4$  $(\frac{6}{2}) ^2 = 9,(\frac{4}{2})^2= 4$ the important point is to look at bx and 4y

$x^2 +6x +5-4y-y^2\\\Longrightarrow x^2 +6x +9 -4-4y-y^2\\\Longrightarrow (x+3)^2 -(y^2+4y+4)\\\Longrightarrow (x+3)^2 - (y+2)^2$

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