Question

x² - 7x + 10 = 0
me ajudem pfv​

Answer 1

Δ=b²-4.a.c

Δ=(-7)²-4.1.10

Δ=49-40

Δ=9

x=-b+_√Δ/2.a

x=-(-7)+_√9/2.1

x=7+_3/2.1

x'=7+3/2

x'=10/2

x'=5

x"=7-3/2

x"=4/2

x"=2

espero ter ajudado...♡