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North CarolinaMathsQuick questions

Expressions and Operations

Quick questions on Factoring quadratic expressions - NC Math 1

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Factor x2−9x+20x^2 - 9x + 20. [1 point]
What is q2?
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Factor 4x2−254x^2 - 25. [1 point]
What is sign errors in the number pair?
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For x2−2x−8x^2 - 2x - 8, the pair is −4-4 and +2+2 (product −8-8, sum −2-2), giving (x−4)(x+2)(x - 4)(x + 2). Track which sign goes where.

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