Question

Expand (-2x - 5y)² please do it
only right answer ⚠️


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Answer 1

Answer:

(a-b)^2=a^2+b^2-2ab

a= -2x

b= -5y

(-2x)^2+(-5y)^2-2(-2x)(-5y)

4x^2+25y^2-20xy

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

${( - 2x - 5y)}^{2} \\ ( - 2x - 5y ) \: ( - 2x - 5y ) \\ - 2x( - 2x - 5y) \: - 5x( - 2x - 5y) \\ {4x}^{2} + 10xy - {10x}^{2} + 25xy$