Answer:
(4 + u)(16 – 4u + u2)
Step-by-step explanation:
64 + u3.
= 43 + u3.
= (4 + u)(42 – 4.u + u2).
= (4 + u)(16 – 4u + u2).
Answer:
The answer to your question is x = 21
Step-by-step explanation:
Equation

- Multiply both sides by 7

- Simplify
2x = 42
- Divide both sides by 2

- Simplify
x = 21