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LekaFEV [45]
3 years ago
5

Use your pointless mathematic skills to solve 9+10=21

Mathematics
1 answer:
alekssr [168]3 years ago
6 0
The answer is 9+ 10=22
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Explain in easy terms, how the signs of the last terms of the two binomial factors of a trinomial are determined?
shutvik [7]

Explanation:

It helps to understand the process of multiplying the binomials. Consider the simple case ...

  (x +a)(x +b)

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If the <em>constant</em> term (ab) is <em>negative</em>, the signs of (a) and (b) are <em>different</em>.

If the constant term (ab) is <em>positive</em>, the signs of (a) and (b) will both match the sign of the coefficient of the linear term (a+b).

___

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