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Question

Find the following product: (5x+7)×(3x+4)

A
15x241x+14
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B
15x3+41x+14
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C
15x2+41x+28
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D
15x3+41x+28
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Solution

The correct option is D 15x2+41x+28
(5x+7)×(3x+4)
=(5x+7)×(3x)+(5x+7)×(4)
=15x2+21x+20x+28
=15x2+41x+28

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