When c=3:(3-5)(3-10)+3*3(3+5) = (-2)(-7) + 9(8) = 14 + 72 = 86
When c=5:(5-5)(5-10)+3*5(5+5) = (0)(-5) + 15(10) = 0 + 150 = 150
Therefore, when c=3, the value is 86 and when c=5, the value is 150.
When c=3:
(3-5)(3-10)+3*3(3+5) = (-2)(-7) + 9(8) = 14 + 72 = 86
When c=5:
(5-5)(5-10)+3*5(5+5) = (0)(-5) + 15(10) = 0 + 150 = 150
Therefore, when c=3, the value is 86 and when c=5, the value is 150.