How do I answer: (2z-1)^2 - 3(2z-1) Cheers
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Originally Posted by AJShaw How do I answer: (2z-1)^2 - 3(2z-1) Cheers How do you simplify (a - b)^2 ?
(2z-1)^2 - 3(2z-1) (2z-1)(2z-1) - 3(2z-1) (2z-1) is common in both terms so you can factor that out (2z-1) * ((2z-1) - 3) (2z-1)(2z-4)
or just:
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