asked 211k views
2 votes
please help :): its simple but not simple enough for my brain and im really trying to get this done and over with.

please help :): its simple but not simple enough for my brain and im really trying-example-1
asked
User Nikopol
by
7.5k points

2 Answers

2 votes

Answer is :


\sf w^2 + 3w - 4 = 0

Step-by-step explanation:

Given equation,


  • \sf (w - 1) (w + 4)

Using FOIL method

Multiply first two terms,


\sf w * w = w^2

Multiply outside two terms.


\sf w * 4 = 4w

Multiply inside two terms,


\sf -1 * w = -1w

Multiply Last two terms,


\sf - 1 * 4 = -4

The given equation becomes,


\sf w^2 + 4w - 1w - 4


\sf w^2 + 3w - 4 = 0

answered
User Escrafford
by
8.4k points
3 votes

Answer:

w² + 3w - 4

Step-by-step explanation:

Use FOIL.

F - first × first

O - outside

I - inside

L - last

(w - 1)(w + 4) =

F - first × first: w × w = w²

O - outside: w × 4 = 4w

I - inside: -1 × w = -w

L - last: -1 × 4 = -4

= w² + 4w - w - 4

Now combine like terms.

= w² + 3w - 4

answered
User Mickeger
by
8.4k points

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