Il Maraschini-Palma - volume 1

10 Equazioni e disequazioni di primo grado ESERCIZI x 5 214 _____ = 3 [11] 215 [2] _5_ 244 [30] 245 [ 2] _3_ 246 [36] 247 [6] 248 [70] 249 [5] 11 ___ 250 [0] 251 [R] 252 [ ] 253 [R] 254 [32] 255 _9_ 256 [7] _5_ 257 1 __ [ 2] 258 [10] 1 ___ 259 21 ___ 260 5 ___ 261 m(m 2) (m + 1)(m + 4) = 3 40 ___ 262 x2 + 2 = (x + 2)(x + 1) 3x [R] 37 ___ 263 (1 x)(2 + x) + 2 = 16 x(3 + x) [6] 264 (x 2)2 4 = 3x2 2(2 x)2 [3] 24 ___ 265 (x + 1)(x + 3) 32 = (x 1)(x 3) [4] 25 ___ 266 x2 = (x + 5)(x 1) 4x [ ] 267 (x + 4)(x 4) + 5x + 10 = (x + 2)2 x [5] 268 (2x 1)(x + 1) = 2x2 [1] 269 (x 1)(x + 1) = 1 + x2 [ ] 270 (2y 1)2 6y = (2y 3)2y 1 [2] 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 2 2u +3 ______ =4 2 _x_ + _x_ = 15 3 6 _k_ 2 = _5_ k 3 3 _u_ _u_ + _u_ = 15 2 3 4 y __ y 3 __ = __ 2 4 2 p __ p 7 __ = __ 5 6 3 _x_ + _1_ = _x_ _1_ 3 6 2 5 y __ y y __ = __ 3 2 4 _z_ _z_ = _z_ 2 3 6 _u_ _u_ = _u_ + 1 2 3 6 x x _x_ _x_ = ___ + __ 3 8 12 8 2m 3m _m_ ___ = 8 ___ 6 3 4 2a a a 1 ___ __ = __ __ 9 6 3 2 x + 3 ___ 3x _1_ _____ = 3 2 6 5 t __ 6t t _____ + = __ 4 2 4 8x 3 ______ 3 4x ______ 6x + 8 ______ + = 5 2 10 n + 4 n 3 n 1 ______ + ______ = _____ 2 6 4 5 + x 6x + 3 1 _____ ______ = __ 3 4 2 a 5 ______ 2a + 7 _1_ _____ = a 10 2 5 b 7 ______ 3b + 1 _b_ _____ = 4 10 5 3x 2x ___ 5x ___ 6x ___ 21 ___ ___ x +9= + + 2 3 6 5 5 c + 2 _5_ _____ 3 c _____ + = (c 4) 3 6 2 6q 3 1 ______ (q + 3) = __ q 4 5 z z z 5 1 __ + __ __ = z ___ 2 3 4 12 x_ x+1 _ _____ 1 = 3 2 x+1 _____ (x 2) = 2 2 p+2 p+3 _____ = _____ + 2 3 2 x(2x 1) x __ = ________ x2 2 2 [5] [11] [14] [ 11] [ 5 ] [6] [11] [2] [1] [ 9] [1] [ 5] [R] 1 2 x 243 __ (x 1) = _____ 2 2 s_____ 2 _____ s 1 + 3 = (s + 3) 2 3 _x_ + 1 _1_(x + 1) = 0 3 4 x 2 _____ x+4 _____ = 3 5 7y + 1 ______ 7y 1 ______ =0 4 3 r 3 3 _____ + r = __ r 2 2 4v + 33 ______ 17 + v _______ = 21 14 3k + 7 5 + 2k ______ + 1 = ______ 3 2 5 4x + 3 2 3x x __ = ______ ______ 2 4 8 3t + 12 5t 2 _______ ______ = 12 4 3 2z __ 3z __ 5z 8z __ + = 8 ___ 9 2 6 27 2x 7 3x + 1 x+6 x + ______ ______ = 5 _____ 2 5 2 x x 3x x 7x 4x __ + __ ___ + __ = ___ ___ 4 2 3 4 6 12 15 x(2x + 1) ________ x(5x + 1) ______ 3x + 1 ________ = 2 5 10 3y 5 ______ 2y 4 _______ 8y 11 ______ 4y 9 ______ = 6 5 6 3 2u 5 _____ 6 7u u + 2 ______ 5 2u ______ ______ + = u 6 4 3 4 3x + 1 _____ x 1 ______ + = 2x 2 2 x + 1 _____ x+2 _____ + (x + 2) = 0 3 2 271 (x 3)(x + 2) (x + 3)x = 0 [1] 8 ___ [11] [ 9] [11] [1] [ ] [ 3] [ ] [ 8] [4] [ 54] [3] [60] [ ] [12] [1] [R] [ 4] [ 1] _2_ _1_ _3_ [ 2] 513

Il Maraschini-Palma - volume 1
Il Maraschini-Palma - volume 1
CAPITOLI DEMO: Insiemi, proposizioni e relazioni; Trasformazioni geometriche nel piano.