Question

discuss the nature roots of 4x² - x - 2=0​

Answer 1

Answer:

b²-4ac=0

x²-4x4x(-2)=0

x²+32=0

x=✓32

Answer 2

Answer:

4x² - x - 2=0

This is quadractic polynomial as the degree of x is 2

Additional information

On the basis of degree polynomial is of 4 types

Linear - degree 1 . general form - ax+ b

Quadractic - degree 2 .general form - ax^2 + bx+c

cubic - degree 3. general form- ax^3 + bx^2+cx+d

biquadratic- degree 4 general form

ax^4+ bx^3 + cx^2 + dx+ e

Note- sometimes it is possible that polynomial is not in the general form so we have to rearrange it in its general form before doing any question.