Question

x Ao Quadrado Menos x+1/4=25

Answer 1

x²-x+1/4=25
x²-x+1/4-25
x²-x+1/4-100/4
x²-x-99/4=0
Δ=(-1)-4x1x(-99/4)
   =1+99
   =100
usando baskara:(1+ou - √100)/2
1+10/2=11/2 ou 5.5
1-10/2= -9/2 ou -4.5