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3 years ago

7

how to factor -9z^2 + 10z - 1 = 0 it’s been a while since i’ve been in school and i can’t seem to remember how please help

1 answer:

vichka [17]3 years ago

7 0

Answer:

z = 1/9 and z = 1

Step-by-step explanation:

$-9 z^{2} + 10z - 1 = 0$

$(-9z+1)(z-1) = 0$

You can check the answer using foil method

Then,

$(-9z+1) = 0$

$-9z = -1$

$z = 1/9$

$(z-1) = 0$

$z = 1$

Answers:

$z = 1/9$

$z = 1$

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