lana2496 lana2496

01-03-2019
Mathematics

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I don’t understand how to multiply polynomials

I dont understand how to multiply polynomials class=

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

01-03-2019

Answer:

3x^4 +7x^2 -20

Step-by-step explanation:

To find how tall the building is, multiply how high each story is by the number of stories

height = (x^2+4) * (3x^2-5)

FOIL

first x^2 *3x^2 = 3x^4

outer -5x^2

inner 4*3x^2 = 12x^2

last -5*4 = -20

Add them together

3x^4 -5x^2 +12x^2 -20

3x^4 +7x^2 -20

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