9.2 Practice - Solving with Exponents Solve. 1) x2 = 75 2) x3 = 8 3) x2 + 5 = 13 4) 4x3 2 = 106 5) 3x2 + 1 = 73 6) (x 4)2 = 49 7) (x + 2)5 = 243 8) (5x + 1)4 = 16 9) (2x + 5)3 6 = 21 10) (2x + 1)2 + 3 = 21 2 11) (x 1) 3 = 16 3 12) (x 1) 2 = 8 3 13) (2 x) 2 = 27 4 14) (2x + 3) 3 = 16 2 15) (2x 3) 3 = 4 1 16) (x + 3) 3 2 1 3 17) (x + 2 ) =4 5 3 =4 18) (x 1) = 32 20) (x + 3) 2 = 8 21) (3x 2) 5 = 16 22) (2x + 3) 2 = 27 3 5 19) (x 1) 2 = 32 4 3 3 23) (4x + 2) 5 = 8 4 24) (3 2x) 3 = 81 336