Question

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

Answer 1

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:

$z = 1/9$

$z = 1$