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3 years ago

Help me simplify this

Mathematics

2 answers:

Komok [63]3 years ago

7 0

Answer:

4√7-8

Step-by-step explanation:

Masja [62]3 years ago

5 0

Answer:

4√7 - 8

Step-by-step explanation:

Here we have to multiply the numerator and the denominator by the conjugate of √7 + 2.

The conjugate of √7 + 2 is √7 - 2.

12 * ((√7 - 2) 12√7 - 24

------ --------------- = --------------

(√7 + 2) *(√7 - 2) (√7)^2 - 2^2

= (12√7 - 24) / (7 - 4)

= 3(4√7 - 8) / (3)

Cancelling out 3 both in the numerator and in the denominator, we get

= 4√7 - 8

Answer: 4√7 - 8

Thank you.

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