Question

-7t^2 – 2t + 9 = 0 pls solve using any method!

Answer 1

$-7t^2 - 2t + 9 = 0\\ -7t^2+7t-9t+9=0\\ -7t(t-1)-9(t-1)=0\\ -(7t+9)(t-1)=0\\ t=-\dfrac{9}{7} \vee t=1$