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Mathematics 16 Online
Bearclaws72:

Question 14 Which of the following expressions is equivalent to: (7x + 3y)(8x + 5y)

Bearclaws72:

A 7x2 + 23xy + 5y2 B 7x2 + 24xy + 8y2 C 56x2 + 59xy + 15y2 D 56x2 + 35xy + 15y2

Bearclaws72:

@Hero

Hero:

Apply the distributive property: a = 8x + 5y, b = 7x, c = 3y to get: 7x(8x+5y) + 3y(8x+5y) Then apply it again. Add like terms afterwards. Its a little confusing at first but you'll get the hang of it

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