kayybee416 kayybee416

28-02-2017
Mathematics

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Simplify the expression

7√7 - 2√28

Respuesta :

wolf1728 wolf1728

28-02-2017

7√7 - 2√28

2 sqrt(28) = 4 * sqrt(7)

7*sqrt(7) - 4*sqrt(7) =

3 * sqrt(7)

Answer Link

H1a2r3s4h5 H1a2r3s4h5

28-02-2017

7squareroot7-2squareroot28
=7squareroot7-2×2squareroot7
=7squareroot7-4squareroot7
=3squareroot7
=3×2.64
=7.92

Answer Link

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