Step-by-step explanation:
2. 9b^2(9b^9-9b+7)
4. 3x^3(5x^2y^6+2x-3)
6. (6x-7)(10x^2+1)
Last answer explanation (number 6)
Group the first two terms and the last two as well: You should have (60x^3-70x^2)+6x+7
Factor out the greatest common factor from each group
10x^2(6x-7)+1(6x-7)
Factor the polynomial by factoring out the greatest common factor (6x-7)
Final answer; (6x-7)(10x^2+1)
