Matematica C3 – Algebra 1 - itis magistri cumacini

www.matematicamente.it - Matematica C 3 – Algebra 1 – 4. Equazioni numeriche intereRisolvi le seguenti equazioni nell'insiemeQ47 3x= 1 3−3x=− 1 348 x2=0 4x−4=049 4x−0=1 2x3 = x350 4x−4=1 4x−1=151 4x−1=0 3x=12− x52 4x−8=3x −x−2 =−2x−353 −3 x−2=3 x2=2x354 −x2=2x3 3 x−2=055 3 x −2=1 3 x−2=356 0x−2=1 0x−2=057 12 x=−9x 40x3 = 30x−10058 4x8x = 12x−8 −2−3x =−2x−459 2x2=2x3x22 = x12x2 1 4 = 3x− 1 260 2x1 =x1261 x=0 2 x=62 0,12 x=0,1 − 1 2 x−0,3=−2 5 x−0,1563 892x−892 = 892x−892 892x−892 = 893x−89264 348x−347 = 340x−347 340x740 = 8942340x65 2x3 = 2x4 2x3 = 2x366 2x3 = 2x5 2x4 = 2x867 3x6 = 6x6 −2x3 =−2x468 x 2 1 4 = x 4 −1 x22 1 4 = x 2 −1 269 x 2 1 4 = 3x2 −1 x2200 1100 = 120070 1000x−100 = 2000x−200 100x−1000=−1000x10071 x−5 1−x =55x R. [10 ]72 2x−5−1−x =3x R. impossibile73 32x =51 x−3 2− x R. 7/574 4 x−2−3 x2=2 x−1 R. -1275 x1000 x1000 =1 R.3 4[ −69887 ]76 x−45 = 2x1377 x12 x−15 = 11078 x 3 − 1 2 = x 4 − x 6R.[ −17 7 ]R.[ − 2 7]79 8x− x 6 =2x11 R. [ 6635]80 3 x−1− 1 7 =4 x−21 R. [ 27 7 ]81 537 x537 x 4 − 537x =0 R. [0]7231R. 2