Select all the correct answers.

Question

Use the pointer tool to estimate and select the approximate solution(s) to the equation x2 + 7x − 6 = 0.

A) x=-6.00
B) x=0
C) x=1.78
D) x=0.78
E) x=-7.50
F) x=-7.78

Answer 1

x = (-7 +/- sqrt(73))/2
Looks like D,F to me (though I get 0.772 and -7.772)