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A rectangle has a length of 3x+5 units and a width of x+5 units. A second rectangle has an area of 4x^2-5x+6 square units. What is the total area of the two rectangles?
Please show work.

Respuesta :

Answer:

7x^2+15x+31

Step-by-step explanation:

(3x+5)(x+5)

FOIL

3x^2+15x+5x+25

(3x^2+20x+25)+(4x^2-5x+6) = 7x^2+15x+31

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Step-by-step explanation:

The distance from one corner of a rectangle to the opposite corner is sometimes called the diagonal and is given by (w2+h2)1/2

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