Question

resuelve:
(X-1) ²+X (X-9) +2 = 0
e indica la mayor solucion

Answer 1

x² -2x+1 + x²-9x+2=0

2x²-11x+3=0

usa la formula:

-b ± (√b²-4ac)/2a

a=2 b=-11 c=3

-(-11) ±(√11² -4(2)(3))/2(2)

11±(√121-24)/4

11 ± √97/4

x= 11 + √97/4 x=11-√97/4

La mayor es:

11 +√97/4