Jawapan

2016-10-15T13:42:29+08:00
A^2 + b^2 = (a+b)^2 - ab

quadratic equation
=10x^2 + x - 24

sum of roots
= a+b = -1

ab = -24

a^2 + b^2 = (-1)^2-(-24)
= 25