Question

the solutions of the eqution x2+bx+c are 3 and 5 then find b&c

Answer 1

Solution is attached below in image

Answer 2

• If 3 &5 are solution of equation x^2+bx+c, then;
3^2 + 3b + c = 0
5^2 + 5b + c = 0

• c= -9-3b
c = -25-5b

• 9+3b = 25+5b
-2b = 16
b = -8

• c = -9-3b
= 24-9
= 15

hence b= -8 & c=15.


hope this helped you ........!