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Expressions and Operations

Quick questions on Factoring polynomials - Virginia SOL Algebra I

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. [2 points]
What is q2?
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Factor 5x2−205x^2 - 20. [1 point]
What are sign mix-up in trinomials?
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For x2+2x−15x^2 + 2x - 15, the numbers are +5+5 and −3-3 (product −15-15, sum +2+2), so (x+5)(x−3)(x + 5)(x - 3), not (x−5)(x+3)(x - 5)(x + 3).

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