On Monday, David woke up at 7:25 A.M. and went to sleep at 8:30 P.M. How long was David awake?
1 answer:
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Answer: 4x² -4
Step-by-step explanation:
First, evaluate the exponent you'll get, + 4x² -5 then evaluate to get, 1+ 4x² -5. Next, subtract the numbers, 1 + 4x² -5 then to get, -4 +4x². Lastly, rearrange the terms, -4 +4x² turns into, 4x² -4!