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Factor.\newline18y3+9y220y1018y^3 + 9y^2 - 20y - 10

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Q. Factor.\newline18y3+9y220y1018y^3 + 9y^2 - 20y - 10
  1. Group Terms: Group the terms to find common factors.\newlineGroup the first two terms and the last two terms separately.\newline18y3+9y220y1018y^3 + 9y^2 - 20y - 10 can be written as (18y3+9y2)(20y+10)(18y^3 + 9y^2) - (20y + 10).
  2. Factor Common Factors: Factor out the greatest common factor from each group.\newlineFrom the first group 18y3+9y218y^3 + 9y^2, we can factor out 9y29y^2, which gives us 9y2(2y+1)9y^2(2y + 1).\newlineFrom the second group 20y+1020y + 10, we can factor out 1010, which gives us 10(2y+1)10(2y + 1).\newlineNow we have 9y2(2y+1)10(2y+1)9y^2(2y + 1) - 10(2y + 1).
  3. Factor Greatest Common Factor: Factor out the common binomial factor.\newlineBoth groups now have a common factor of (2y+1)(2y + 1).\newlineFactor out (2y+1)(2y + 1) from both groups.\newlineThe expression becomes (2y+1)(9y210)(2y + 1)(9y^2 - 10).
  4. Factor Common Binomial: Check if the quadratic can be factored further.\newlineThe quadratic 9y2109y^2 - 10 does not factor nicely with integer coefficients, so it is already in its simplest form.