Answer:
0
Step-by-step explanation:

<em>combine like terms</em>

Answer:
2123.72 cm²
Step-by-step explanation:
Hope it helps

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=

. This can be simplified to 5x

, because √50 simplifies to 5√2 (since 5x5x2 equals 50) and the square root sign takes x² from x³ and turns it into just x.