Question

if a and b are the zeroes of polynomial x² + 7x +3 then the value of ( a- b ) ² is
Ans :37
​

Answer 1

Answer:

Step-by-step explanation:  from given equation  comparing general quadratic equation x²-(a+b)x+ab  we get:

a+b=-7;  a²+b²+2ab=49;  a²+b²=49-6=43;.............(1)

ab=3;

(a-b)²=a²+b²-2ab;

from (1)

(a-b)²=43-6=37;

hence proved;

Answer 2

Answer:

I hope this will help you...