Solve each equation by using the Quadratic Formula. Round to the nearest tenth if necessary.
1.6x2 + 2x + 2.5 = 0
2 answers
I need help
a = 1.6
b = 2
c = 2.5
x = (-b ± √(b^2 - 4ac)/(2a)
(you MUST memorize this formula)
x = (-2 ± (√(4 - 4(1.6)(2.5))/3.2
= (-2 ± √-12)/3.2
This is a complex or imaginary number, so there is no REAL solution.
Is that your problem?
Have you studied complex numbers?
b = 2
c = 2.5
x = (-b ± √(b^2 - 4ac)/(2a)
(you MUST memorize this formula)
x = (-2 ± (√(4 - 4(1.6)(2.5))/3.2
= (-2 ± √-12)/3.2
This is a complex or imaginary number, so there is no REAL solution.
Is that your problem?
Have you studied complex numbers?
1 answer