Remove the brackets from:

(5x + 3)(x-4)

(2x-1)

^{2 }please help and show all your working out,

thank you very much!

Remove the brackets from:

(5x + 3)(x-4)

(2x-1)^{2 }

please help and show all your working out,

thank you very much!

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Middletown, CT

Hi again Kath;

HAPPY THANKSGIVING!

You are like me. When I was in school, the Holidays were an opportunity to catch-up on homework. I never learned how to baste a turkey. Larry is doing all of the cooking today. I cannot even make the frozen corn.

(5x + 3)(x-4)

First, I would like to correct your English. These are not brackets. Brackets are [ and ]. These are parentheses. We have to resolve two parenthetical equations.

Let's FOIL...

FIRST...(5x)(x)=5x^{2}

OUTER...(5x)(-4)=-20x

INNER...(3)(x)=3x

LAST...(3)(-4)=-12

You may already know that a negative number multiplied by a positive number results in a negative number.

Therefore...

5x^{2}-20x+3x-12

5x^{2}-17x-12

(2x-1)^{2}

This is...

(2x-1)(2x-1)

Let's FOIL...

FIRST...(2x)(2x)=4x^{2}

OUTER...(2x)(-1)=-2x

INNER...(-1)(2x)=-2x

LAST...(-1)(-1)=1

4x^{2}-2x-2x+1

4x^{2}-4x+1

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## Comments

equations, but rathersimplifyingexpressions.