Question

Resolva as seguintes equações,com a formula de Bhaskara.
a)$x^{2} -5x+6=0$

b)$x^{2} +5x-6=0$

Answer 1

a) x²-5x+6
x= -b+/-√b²-4ac / 2a
x= 5+/- √25-24 / 2
x= 5 +/-√ 1 / 2
x= 5+/-1 / 2

x= 5+1 / 2
x= 6 / 2
x= 3

x'= 5-1 / 2
x'= 4 / 2
x'= 2

b) x²+5x-6=0
x= -5 +/-√25+24 / 2
x= -5 +/- √49 / 2
x= -5 +/- 7 / 2

x= -5+7 / 2
x= 2 / 2
x= 1

x'= -5-7 / 2
x'= -12 / 2
x'= -6