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18-01-2019
Mathematics

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These three. Please. I don’t know how to do them

These three Please I dont know how to do them class=

Respuesta :

choixongdong choixongdong

18-01-2019

Answer:

23)

P = 20x^2 + 14xy^2

A = 70x^3y^2

24)

P = 8a^3b + 4ab

A = 4a^4b^2

25)

A = 18x^3y

Step-by-step explanation:

23)

P = 2(10x^2 + 7xy^2)

P = 20x^2 + 14xy^2

A = 10x^2 x 7xy^2

A = 70x^3y^2

24)

P = 2a^3b + 6a^3b + 4ab

P = 8a^3b + 4ab

A = 1/2(2a^3b)(4ab)

A = 4 a^4 b^2

25)

A = 1/2(4xy+8xy)(3x^2)

A = 1/2(12xy)(3x^2)

A = 18x^3y

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