Question

help me plz branniest to whoever is right

Answer 1

Answer:

x= -7, x=8

Step-by-step explanation:

factoring method..

Answer 2

f (x) = - x² + 12x - 20

= - x² + 10x + 2x - 20

= - x( x - 10 ) + 2( x - 10 )

= ( x - 10 ) ( -x + 2 )

=> x = 10, x = 2