If a= 1 , b= -2, c = 3 then find the value of a cube +b cube+ c cube ab+ bc +ac
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Answer:
put the value of a,b and c
Step-by-step explanation:
a cube +b cube + c cube + ab +bc+ac
= (1) cube + (-2) cube + (3) cube + 1(-2) + (-2)(3) + 1(3)
= 1+(-8)+27 +(-2)+(-6) + 3
= 1-8+27-2-6+3
= 15
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