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3 years ago

11

Simplify (2√5 + 3√7)² Show your work. Justify each step.

1 answer:

Pepsi [2]3 years ago

7 0

We can think of roots as x. For example, 2 $\sqrt{5}$ 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.

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sertanlavr [38]

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