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soldi70 [24.7K]
3 years ago
12

I need help with this problem

Mathematics
2 answers:
pychu [463]3 years ago
8 0

Step-by-step explanation:

Solution,

Given:-

Length=x+4

Width=x-9

Now,

By applying the formula for area of rectangle, we get

Area=length×width

Area=(x+4)(x-9)

Area=x(x-9)+4(x-9)

Area=x²-9x+4x-36

Area=x²-5x-36

Zarrin [17]3 years ago
5 0
  • L=x+4
  • B=x-9

\\ \sf\longmapsto Area=LB

\\ \sf\longmapsto Area=(x+4)(x-9)

\\ \sf\longmapsto Area=x(x-9)+4(x-9)

\\ \sf\longmapsto Area=x^2-9x+4x-36

\\ \sf\longmapsto Area=x^2-5x-36

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