Question

if M =2-C prove that C³ + 6 CM +M³ -8 =0​

Answer 1

Step-by-step explanation:

M = 2-C EQ1

to prove

C³ + 6 CM +M³ -8 =0

APPLY EQ1

C³ + 6C(2-C)+(2-C)³-8 =0

C³+12C-6C²+8-12C+6C²+C³-8 =0

2C³ = 0

C³ = 0

C = 0

C = 0 in eq1

M = 2-C

M = 2.

hence proved