Question

Como resolver esse exército usando Baskáras : X2 + 5x = 36

Answer 1

x²+5x-36 = 0
/\ = 5² - 4.1.(-36)
/\ = 25+144
/\ = 169
x = (-b+/- \/169)/2.1
x = (-5+/-13)/2
x' = (-5+13)/2 = 8/2 = 4
x" = (-5-13)/2 = -18/2 = -9

Answer 2

x²+5x=36

x²+5x-36=0

Δ=5²-4·1·(-36)

Δ=25+144

Δ=169

x=-5+/-√169/2·1

x=-5+/-13/2=

x'=-5+13/2= 8/2=4

x''=-5-13/2=-18/2=-9