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anonymous
 5 years ago
z2 – z – 56 how to factor completely this problem?
anonymous
 5 years ago
z2 – z – 56 how to factor completely this problem?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Which gives you z = 8 and z = 7 as your roots.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I get the opposite (z7)(z+8) are they the same?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no they are not the same. FOIL your answer you would get z^2 + z  56

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you want two numbers that multiply to 56 and add up to 1 8 and 7 will do that 8 and 7 will get you a sum of +1 HOWEVER, the ROOTS of the equation, as BubbaMurphy says are 8 and 7 because you have (z  8)(z + 7) = 0 so you get z  8 = 0 z + 7 = 0 giving you z = 8 and 7

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh okey thanks guys u save me
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