Question
adunati fractiile x-4/3x-6 + 3x-1 /x^2+2x
Asked by: USER2376
41 Viewed
41 Answers
Responsive Ad After Question
Answer (41)
( x -4) / 3 ·( x +2) + ( 3x -1) / x· ( x + 2)
numitor = 3 ·x ·( x +2)
= [ x·( x -4 ) + 3 ·( 3x - 1) ] / 3·x· ( x +2)
= [ x² - 4x + 9x - 3 ] / 3 ·x · (x + 2)
= [ x² + 5x - 3 ] / 3·x ·( x +2)
numitor = 3 ·x ·( x +2)
= [ x·( x -4 ) + 3 ·( 3x - 1) ] / 3·x· ( x +2)
= [ x² - 4x + 9x - 3 ] / 3 ·x · (x + 2)
= [ x² + 5x - 3 ] / 3·x ·( x +2)