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The correct answer is one of:

A: (7x + 5)*(7x + 6) = 49x2 + 77x + 30

B: (7x + 5)*7x + 6 = 49x2 + 35x + 6

C: 7x + 5*7x + 6 = 42x + 6

Since there are no brackets in the question, the correct answer is C but I suspect there should be brackets but this site does not allow them.

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βˆ™ 12y ago
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βˆ™ 9y ago

That doesn't factor neatly. Applying the quadratic formula, we find two imaginary solutions: (-7 plus or minus the square root of -95) divided by 12.

x = -0.583333 repeating + 0.8122328620674136i

x = -0.583333 repeating - 0.8122328620674136i

where i is the square root of negative one.

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βˆ™ 11y ago

28 x 56 = 1568

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βˆ™ 11y ago

6 x 16/7 = 96/7 or 13 and 5/7

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ツItzdemxn

Lvl 5
βˆ™ 3y ago

27

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