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NemiM [27]
3 years ago
12

Please help me solve

Mathematics
2 answers:
AlexFokin [52]3 years ago
8 0

Answer:

w^2 +3w -88=0

Step-by-step explanation:

l = w+3

w = width

A = l*w

A = (w+3) *w

Distribute

A = w^2 +3w

We know the area is 88

88 = w^2 +3w

Subtract 88 from each side

0 = w^2 +3w -88

Lynna [10]3 years ago
6 0

Answer:

C. w² + 3w - 88 = 0

Step-by-step explanation:

Area of a Rectangle: A = lw

We need to figure out what <em>l</em> and <em>w</em> are:

<em>l </em>= w + 3

<em>w</em> = w

So now we know our 2 variables, we plug it into the area formula:

88 = w(w + 3)

88 = w² + 3w

The only way to find <em>w</em> is using quadratic formula or factoring:

w² + 3w - 88 = 0

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