Question: In Problems 19-56, factor completely. If a polynomial cannot be factored, say so. 20. 2x2 + 5x - 3 22. x2- 4xy - 12y2 24.

In Problems 19-56, factor completely. If a polynomial cannot be factored, say so.
20. 2x2 + 5x - 3
22. x2- 4xy - 12y2
24. x2+ x - 4
30. u2 + 81
52. 4(A + B)2 - 5(A + B) - 6
54. m4 - n4
56. 15x2(3x - l)4+ 60x3(3x - 1)3

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20 22 2x 5x3 a 2 b 5 c 3 Step 1 Step 2 Use the actest to test for factorability ac 23 6 1 6 5 b Thus ... View full answer

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