Maths~
Sunday, March 14, 2010 3:42 AM
Alicia's Maths Questions:
1e. 4x² / 8x = 1x/2
2d. mn/m(m-n) = n/m-n
2k. (5x+2y)² / 5xy(5x+2y) = 5x+2y / 5xy
2p. 5m-n / 2m(n-5m) = - 1 /2m
3b. 1
3d. -1
3i. 5(x-2) / (x+4) (x-2) = 5/(x+4)
3L. (x+4)(x-3) / (x-3)(x+3) = x+4/x+3
3k. (x+9)(x-2)/x(x-2) = (x+9)/x
3n. 2(9x² - 25) / ( 3x - 5 ) (2x+3) = 2(3x-5) (3x+5) / ( 3x-5) ( 2x+3)
= (6x+10)/(2x+3)
3o. (x-3)(x+7) / (x+7)(x-2) = (x-3) / ( x-2)
3t. a(4a² - 9b²)/ a( 2a² - ab - 6b²) = (2a - 3 b ) ( 2a + 3b ) / ( 2a-3b) ( a+2b) = (2a+3b)/(a+2b)
4c. (3a+b)(a-c) / (4a-b) (a-c) = (3a+b) / (4a-b)
4g. a(a+4b) + (2b-c)² / a(a+2c)+(c-2b)² = a(a+4b) - (c-2b)² / a(a+2c)+(c-2b)² = (a+4b)/(a+2c)
Credits: Joe&Francis.
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