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Simplify the expressions
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Simplify the expressions

Simplify the expressions-example-1
User SayAz
by
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1 Answer

5 votes

Answer:

3. C

4. A

Explanation:

3. Distribute and simplify:


√(21)√(3) + √(21) √(14)

=
3 √(7) + 7 √(6)

4. Multiply by the conjugate:


4(√(10) +√(6) ) / (√(10) -√(6)) (√(10) +√(6))

Simplify and divide:


4(√(10) +√(6)) / 4

=
√(10) +√(6)

User Pelmered
by
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