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Topic review (newest first)
- MathsIsFun
- 2005-05-13 14:53:21
That's as far as I can get.
Just express it as: a(c-b^2) / (a-b)
- im really bored
- 2005-05-13 11:47:03
if x = (c - ab) / (a - b) , find the value of the expression a(x + b) in simplified form
So far I have gotten this far
substitute : a ( (c - ab) / (a - b) + b )
simplify: ( a(c - ab) / a - b ) + ( ab/ 1 )
( a(c - ab) + ab(a - b) ) / (a - b)
( ca - a^2(b) + a^2(b) - ab^2 ) / (a - b)
( ca - ab^2 ) / (a - b)
Is this all I could simplify it, or am I missing something?