jorgetineo2005 jorgetineo2005

Today at 1:39 PM
Mathematics

Answered

Simplify (2x+5)(2x−5).

A) ( 4x − 25 )

B) ( 4x^2 − 10 )

C) ( 4x^2 − 25 )

D) ( 4x^2 − 20x − 25 )

Answer :

ps525038 ps525038

Today at 1:44 PM

Answer:

Solve For X

A) X = 6.25

B) X =

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ChemMajor ChemMajor

Today at 1:44 PM

Answer:

C See below

Step-by-step explanation:

Use FOIL to find answer

First, Outer, Inner, Last

First 2x times 2x = 4x²

Outer 2x times 5 = - 10x

Inner 5 times 2x = 10x

Last 5 times 5 = - 25

so equation ends up 4x² - 10x + 10x - 25

or 4x² - 25

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