Factorise [(a+2b)+(2a-c)+(a+2c)]^3 - 3abc

64a 3 + 96 a 2 b + 48 a b 2 + 8 b 3 + 48 a 2 c + 12 b 2 c + 12 a c 2 + 6 b c 2 + c 3 + 45 a b c

Step-by-step explanation:

angle q= 92 degree

step-by-step explanation:

the solution is in the picture

when a quadrilateral is inscribed in a circle, the opposite angles are supplement to each other. in other words, the sum of the 2 angle is 180 degree

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.