2 answers:
Answer:
32 × 2 = 64
Step-by-step explanation:
x is being multiplied by 2 so it would be half of 64.
Answer:
x = ± 8
Step-by-step explanation:
Given
x² = 64 ( take the square root of both sides )
x = ± 
= ± 8 ← note plus or minus
[ since 8² = 64 and (- 8)² = 64 ]
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The time when the two trains reach each other is 1.25 hours
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