Exercicis equacions exponencials:
- = -73x 2 7x 1 - + =11x2 3x 2 1 =3x6 3967
- =( - )73x 2 7x 1 12 - + =11x2 3x 2 110 =( )3x6 32 67
- = -73x 2 7x 12 - + =x2 3x 2 0 =3x6 3127
- = -3x 2 x 12 x = 1 7x = 72 (multipliquem els
- = -6x 4 x 1 x = 2 exponents i...
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Exercicis equacions exponencials:
- = -73x 2 7x 1 - + =11x2 3x 2 1 =3x6 3967
- =( - )73x 2 7x 1 12 - + =11x2 3x 2 110 =( )3x6 32 67
- = -73x 2 7x 12 - + =x2 3x 2 0 =3x6 3127
- = -3x 2 x 12 x = 1 7x = 72 (multipliquem els
- = -6x 4 x 1 x = 2 exponents i traiem les fraccions)
=5x 3
=x 35 =x 727
+ =22x 3 16 - =34x 1 81 - =5x2 1 58
+ =22x 3 24 - =34x 1 34 - =x2 1 8
2x+3 = 4 4x-1 = 4 - =x2 9 0
2x = 1 4x = 3 x = 9
=x 12 =x 34 x = ±3
+ = -42x 3 25x 3 - + =2x2x 12x 1 64 - + = -116 x 3 323x 2
2x-5x = -3-3 + - + + =2x x 1 x 1 26 - + = ( ) -124 x 3 25 3x 2
-3x = -6 x+x+1+x-1 = 6 ( ) - = ( ) -24 x 3 25 3x 2
=x 2 3x = 6 4x-12= 15x-10
=x 2 11x = -2
=-x 211
- + =ax2 2x 4 a11a8 + + =2x 2x 3 9 + =3x 9x 12
- + =x2 2x 4 3 + =2x 2x23 9 +( ) =3x 32 x 12
- + =x2 2x 1 0 + =2x1 23 9 + =3x 32x 12
= ± -x 2 22 42 2x(9) = 9 +( ) - =3x 3x 2 12 0// =3x t
=x 1 2x = 1 + - =t2 t 12 0
=2x 20 t1= -4 ≠ -3x 4 (no pot ser negatiu)
=x 0 t2= 3 =3x 3 =x 1
- =22x 3·2x 4 + + + + =5x 5x 1 5x 2 31 - + =9x 4·3x 3 0
( ) - =22 x 3·2
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