Question

Resolva atraves da formula bháskara x²+x-56=0

Answer 1

 

 = b²-4ac

= 1²-4.1.(-56)

=1+224

=225

-b 

Answer 2

d)x²+x-56=0
( x + 8 ) ( x - 7 ) = 0, x' = -8, x'' = -7