Question

without actually calculating the cubes, find the value of (0.4)cube - (0.2)cube + (0.6)cube

Answer 1

Answer:

your answer is here ⏬ ⏬ ⏬ ⏬ ⏬ ⏬

Step-by-step explanation:

See image

Ok

Answer 2

Answer:

0.144

Step-by-step explanation:

-(0.4)^3-(0.2)^3+(0.6)^3

= -(0.5-0.1)^3-(0.5-0.3)^3+(0.5+0.1)^3

= -[0.125-0.001-3(0.5)(0.1)(0.4)]-[0.125-0.027-3(0.5)(0.3)(0.2)]+[0.125+0.001+3(0.5)(0.1)(0.6)]

= -0.064-0.008+0.216

=0.144

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