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18-03-2020
Mathematics

contestada

Simplify.

25
−
40
A) 3
10
B) 10
10
C) 5 − 2
10
D) 2
10
− 5

Simplify 25 40 A 3 10 B 10 10 C 5 2 10 D 2 10 5 class=

Respuesta :

Larrysammz Larrysammz

18-03-2020

Answer:

5 -2√10 = C

Step-by-step explanation:

√25 -√40

√25 = √5 x5 = √5² = 5

√40 = √5 x 8 = √5x 2x4 = √10x4 = √10x 2² = 2√10 (when the 2 comes back into the square root it become 2²)

√25 -√40 = 5 -2√10

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