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R^2 -4r -77 = (r + ?)(r + ?)

R^2 -4r -77 = (r + ?)(r + ?)
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R^2 -4r -77 = (r + ?)(r + ?)

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User Kem Bardly
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1 Answer

2 votes
R^2 -4r -77 = (r + -11)(r + 7)
or = (r -11)(r + 7)
answered
User Padilla
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7.6k points
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