Answer:
Multiply each expression by the same number.
Step-by-step explanation:
Answer:
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Answer:
110
Step-by-step explanation:
Using the expansion
(a + b)³ = a³ + b³ + 3ab(a + b)
Given
x +
= 5 ( cube both sides )
(x +
)³ = 5³ = 125 ← expand left side using identity
x³ +
+ 3(x ×
)(x +
) = 125
x³ +
+ 3(1)(5) = 125
x³ +
+ 15 = 125 ( subtract 15 from both sides )
x³ +
= 110
Answer:
c
Step-by-step explanation: