radical
√7(√14 +3√7)
using distributive property,
√7√14 +3√7√7
we can write √14 as √2*√7,
√7√2√7 +3√7√7
√7(√14 +3√7)=7√2 +21
Answer:
21 gallons
Step-by-step explanation:
We can solve this problem by ratios
126 miles 378 miles
-------------- = -------------
7 gallons x gallons
Using cross products
126 *x = 378 *7
126x =2646
Divide each side by 126
126x/126 = 2646/126
x =21


So the answer is 4
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And we're done.....♥️♥️♥️♥️♥️