Explain how to simplify rational expressions

5x^3-9x^2+6x-5   Find all possible rational zeros

could you help please help with these questions. Thank you

The student was asked to divide the given rational expressions. Explain what the student did wrong. (h +3)(h-6) (h-6)(h+ 2) (h+2)(h+5) (h + 3)(h + 4) Shania (h+3)(h-6) (h+2)(h + 5) Ih+3(h -6) Ih+2Mh +5) * th+3}(h + 4) (h-6)(h -6) (h+5)(h + 4) (h-6)(h +2) (h +3)(h + 4) (h -6)(h+2) O In the last step, the student neglected to divide out the last remaining common factor (h - 6). O The student's answer is not complete without expanding all parentheses in the final step. O The student shouldn't have divided out any common factors before expanding all parentheses. O When dividing out any common factors, the student should have added a minus sign in case the factors are negative. O The student did not change from division to multiplication of rational expressions and, therefore, divided out the wrong common factors. Give the correct answer. (Simplify your answer completely.) acer

What is meant by a proper  rational expression?

I'm reviewing for precalc and I dont understand how to completely factor expressions with rational exponents.  Such as x5/2-9x1/2  And x-3/2+2x-1/2+x1/2 Any help would be appreciated

write 3 questions of RATIONAL EXPRESSIONS and solve each one of them show your full work in paper