10. 2x2 −10xx2+10x+25 ÷ x−5 x+5 11. x−68x+32÷ x2 −36 x2 +10x+24 Solve. 12.Givenf(x)= x2 +10x+25 x−4andg(x)= 4−x x2 −25 , findf(x)⋅g(x) . 13.Givenf(x)= x2 −9 x−3andg(x)=x3 −27 3x2 +9x+27 , findf(x)÷g(x) . 14.Givenf(x)=x2+5x+6 x2−9 andg(x)= 4x+8 x2 −6x+9 , findf(x)÷g(x) . 7.2: Add and Subtract Rational Expressions Simplify. 15. x2 +12xx+6+ 36 x+6 16. x2 x+10− 100 x+10 17. 7xx2−25− 35 x2 −25 18. x2 x−7+ 49 7−x 19. x2 −8xx−10+ 20 10−x 20. 4x2 2x−1+ 1 1−2x Find the lowest common denominator.
