Question

encontre as raizes da equacao x2 - 7x +12 = 0

Answer 1

x² -7x +12 = 0
Δ= b² -4 ac
Δ= (-7)² - 4.1.12
Δ= 49 - 48
Δ= 1

x= -b +/- √Δ/ 2a
x= - (-7) +/- √1 / 2.1
x'= 7+1 / 2
x'= 8 / 2
x'= 4

x''= 7-1 / 2
x''= 6 / 2
x''= 3

Bons estudos!

Answer 2

oi
x²-7x+12=0
onde a=1,b=-7,c=12
Δ=b²-4.a.c
Δ=(-7)²-4.1.12
Δ=49-48
Δ=1
x=-b+-√Δ/2a
x=-(-7)+-√1/2.1
x=+7+-1/2
x1=8/2=4
x2=6/2=3

solução = 4,3