Answer:
1. = a^2-3a-28
2. 20m^2+18m-18
3. y^2+49
4. x^4+4x^3-27x^2+34x-48
5. 6x^4-32x^3+38x^2+28x-48
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Answer:
1. = a^2-3a-28
2. 20m^2+18m-18
3. y^2+49
4. x^4+4x^3-27x^2+34x-48
5. 6x^4-32x^3+38x^2+28x-48