Question

4. If the roots of ax² + x + b = 0 be real and unequal, show that the roots of
imaginary.
​

Answer 1

Step-by-step explanation:

Nutrient deficiencies

disease (and key nutrient involved) symptoms

rickets (vitamin D) weakened bones, bowed legs, other bone deformities

beriberi (thiamin) nerve degeneration, altered muscle coordination, cardiovascular problems

pellagra (niacin) diarrhea, skin inflammation, dementia

Answer 2

Step-by-step explanation:

Roots of the equation ax

2

+x+b=0 are real and different.

⇒D=B

2

−4AC>0

⇒1−4ab>0

∴4ab−1<0 ------(1)

x

2

−4

ab

x+1=0

D=B

2

−4AC=16ab−4=4(4ab−1)<0 (from (1))

∴ Roots are imaginary.