How many real number solutions are there to the equation 0 = -3x2 + x - 4
Solution:
Given equation is -3x2 + x - 4 = 0
Discriminant determines the nature of the quadratic solution
It is calculated as Δ = b2 - 4ac
In the given equation, a = -3, b =1 and c = -4
= (1)2 - 4(-3)(-4)
= 1 - 48 = -47
⇒ Negative value
Therefore, no real solutions.
Note: If quadratic equation is ax2 + bx + c = 0, then discriminant Δ = b2 - 4ac decides nature of roots of quadratic equation,
(i) If Δ = 0, then roots are real and repeat
(ii) If Δ > 0, then roots are real and distinct
(iii) If Δ < 0, then roots are imaginary or complex or non-real
How many real number solutions are there to the equation 0 = -3x2 + x - 4
Summary:
There are no real solutions for the given equation 0 = -3x2 + x - 4.
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