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Factor.\newline7s29s+27s^2 - 9s + 2

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Q. Factor.\newline7s29s+27s^2 - 9s + 2
  1. Identify Coefficients: Identify the coefficients of the quadratic expression.\newlineThe quadratic expression is 7s29s+27s^2 - 9s + 2. Here, the coefficient of s2s^2 (a)(a) is 77, the coefficient of ss (b)(b) is 9-9, and the constant term (c)(c) is 22.
  2. Find Multiplying Numbers: Find two numbers that multiply to acac (7×2=147 \times 2 = 14) and add up to bb (9-9).\newlineWe need to find two numbers that multiply to 1414 and add up to 9-9. The numbers that satisfy these conditions are 7-7 and 2-2 because 7×2=14-7 \times -2 = 14 and 7+2=9-7 + -2 = -9.
  3. Rewrite Middle Term: Rewrite the middle term using the two numbers found in the previous step.\newlineWe can express 9s-9s as 7s2s-7s - 2s, so the expression becomes 7s27s2s+27s^2 - 7s - 2s + 2.
  4. Factor by Grouping: Factor by grouping.\newlineGroup the terms into two pairs: (7s27s)(7s^2 - 7s) and (2s+2)(-2s + 2). Factor out the greatest common factor from each pair. From the first pair, we can factor out 7s7s, and from the second pair, we can factor out 2-2.\newlineThis gives us 7s(s1)2(s1)7s(s - 1) - 2(s - 1).
  5. Factor Common Binomial: Factor out the common binomial factor.\newlineBoth terms have a common factor of (s1)(s - 1), so we can factor this out to get (s1)(7s2)(s - 1)(7s - 2).