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Assuming you mean:(4x+36)(8x-40) = 0

then you can use the property that a product can only be zero if one of its factors is zero. In other words, you can change this to:

4x + 36 = 0 OR 8x - 40 = 0

Solve each of the individual solutions; their solutions are also solutions to the original equation.

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The solutions to (4x + 36)(8x - 40) = 0are x = -9 or x = 5

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7y ago
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Q: What are the solutions to the equation below (4x plus 36)(8x-40)0?
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