In a recent year, the price of a gallon of heating oil in a New England town rose 5 cents, dropped 2 cents, and then rose 4 cent
2 answers:
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We can think of roots as x. For example, 2 
can be 2x. Just treat it the same way. (but not the exact numbers!)
<span>(2√5 + 3√7)²
</span>(2√5 + 3√7)(2√5 + 3√7)
Distribute.
4√25+6√35+6√35+9√49
Simplify.
4(5)+12√35+9(7)
30+63+12√35
83+12√35 is your answer.
<span>(2√5 + 3√7)²
</span>(2√5 + 3√7)(2√5 + 3√7)
Distribute.
4√25+6√35+6√35+9√49
Simplify.
4(5)+12√35+9(7)
30+63+12√35
83+12√35 is your answer.