Question

Hello please help me

Answer 1

put 4x^ -7=0
4x^2=7
x^2=7/4
x=√7/2

Answer 2

Given Quadratic polynomial = 4x^2 - 7

= > 4x^2 - 7 = 0

= > 4x^2 = 7

= > x^2 = 7/4

$= \ \textgreater \ x = \frac{ \sqrt{7} }{2} , - \frac{ \sqrt{7} }{2}$


Hope this helps!