kristianab kristianab

23-02-2021
Mathematics

contestada

Which of the following expressions is equivalent to (-3x5y) (-4x9y2)

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ngunjay ngunjay

23-02-2021

Answer:

12x^227xy^2 - 20xy4y^3

Step-by-step explanation:

(-3x5y) (-4x9y^2)

first : -3x (-4x9y^2) = 12x^227xy^2

second: 5y(-4x9y^2) = -20xy45y^3

then we add them (12x^227xy^2) + ( -20xy45y^3)

= 12x^227xy^2 - 20xy45y^3

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