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1. Determine the non-permissible values for the following expressions. a) 2p3-4p2 4x--1 16-8p C) x-20 2. Simplify the following expressions. 4+3-9t 2x2+5x a) 2+2-3t b) 4x+10 3. The area (in m?) of a rectangular field can be represented by the expression 12a2 + 28a, and the length (in m) of the field can be represented by 3a + 7. a) Write and simplify a rational expression that represents the width of the field. b) If the perimeter of the field is 54 meters, determine the value of a.4. Simplify the following expressions and determine the non-permissible value(s). 3tz-27 a) x2-121 2t2-6t b) x2+11x 5. Determine the sum or difference and state the non-permissible values. a) *+5 d) '+ 6x b) 10 + e) - (x+2)(x+1) (x+2)(x-1) x2-1 x2-x 7h+1 3h-3 C) f) n-2 n+4 h2th h2+h n2-5n n2-166. Determine the sum or difference and state the non-permissible values. n+4 b) 10 a) n+3 2n 3n2 4k2-4 5 k-5 7. Simplify the following: +. State any non-permissible values