Question

-x2 7x-6=0 Resposta em Bhaskara

Answer 1

-X² + 7X - 6 = 0
b² - 4ac
 7² -4 . -1 . -6 
49 - 24 = 25

X= -7 +- √25 ⇒-7-5 ÷ -2 ⇒ -12 ÷ -2 =6
        2·(-1)    ⇒-7+5 ÷ -2 ⇒ -2 ÷ -2 = 1

Answer 2

-x²+7x-6=0
A= -1/ B= 7/C= -6
Δ= 7²-4·(-1)·(-6)
Δ=49-24
Δ=25

X= -7 +- √25 ⇒-7-5 ÷ -2 ⇒ -12 ÷ -2 =6
        2·(-1)    ⇒-7+5 ÷ -2 ⇒ -2 ÷ -2 = 1