Answer: The answer to 2c+15cd+9d+12=12.
2c + 15cd + 9d + 12
the variable terms: 2c, 15cd, 9d.
1.-28×-28×-28+13×13×13+16×16×16
=21,952+2,197+4,096
=28,245.
2.12×12×12+-7×-7×-7+-5×-5×-5
=1,728+-343+-125
=1,260
Answer:
a²-17=8
Step-by-step explanation:
5²-17= 25-17
= 8
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