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10x3 + 3x2 – 20x – 6 (10x3 + 3x2) + (–20x – 6) x2(10x + 3) + (_______)(10x + 3) Teresa is factoring this polynomial by grouping. Which number goes in the blank to complete the step?
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10x3 + 3x2 – 20x – 6

(10x3 + 3x2) + (–20x – 6)

x2(10x + 3) + (_______)(10x + 3)

Teresa is factoring this polynomial by grouping. Which number goes in the blank to complete the step?

User Per Salbark
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1 Answer

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-2
Because -2(10x+3) is (-20x-6) when you distribute
User Ronedog
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