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5 votes
What is the following product? (2 sqrt 7 +3sqrt 6)(5 sqrt 2+4 sqrt3)

2 Answers

4 votes

Answer:its D on edgen

Explanation:

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User Webwrks
by
7.3k points
5 votes

Answer: The required product is
(10√(14)+8√(21)+30√(3)+36√(2)).

Step-by-step explanation: We are given to find the following product :


P=(2\sqrt7+3\sqrt6)(5\sqrt2+4\sqrt3)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To find the above product, we need to multiply each term of the first expression with each term of the second expression.

We will be using the following properties of radicals :


\sqrt a* \sqrt b=√(ab).

So, from (i), we get


P\\\\=(2\sqrt7+3\sqrt6)(5\sqrt2+4\sqrt3)\\\\=2\sqrt7(5\sqrt2+4\sqrt3)+3\sqrt6(5\sqrt2+4\sqrt3)\\\\=10√(7*2)+8√(7*3)+15√(6*2)+12√(6*3)\\\\=10√(14)+8√(21)+15√(2^2*3)+12√(3^2*2)\\\\=10√(14)+8√(21)+15*2√(3)+12* 3√(2)\\\\=10√(14)+8√(21)+30√(3)+36√(2).

Thus, the required product is
(10√(14)+8√(21)+30√(3)+36√(2)).

User Jendrik
by
6.2k points
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