Question

(xy+5)² como see faaz

Answer 1

(xy-5)²

xy²-2.xy.5-25

xy²-10xy-25

a=1

b=10

c=25

fórmula de baskhara:

-b+/-√b²-4ac/2a

10+/-√10²-4.1.25/2.1

10+/-√100-100/2

10+/-√0/2

10+0/2

10/2

x'=5

10-0/2

10/2

x"=5