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the area of a rectangle can be expressed by 2x^2-7x-4 if the rectangle has an area of 45 find the positive value for x

1 Answer

5 votes

Answer:

x^2 + 8x +15 is the area

x+5 is the length

x+3 is the width

(x+5)(x+3)=

x^2 + 3x +5x +15

x^2 +8x + 15

Explanation:

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