mrscriptixx mrscriptixx

09-05-2020
Mathematics

contestada

If [tex](3x+5)^2=ax^2+bx+c[/tex], what is the value of a+b+c?

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

09-05-2020

Answer:

64

Step-by-step explanation:

(3x+5)^2 = ax^2 +bx+c

FOIL the left side

(3x+5) (3x+5)

9x^2 +15x+15x+25

Combine like terms

9x^2 +30x+25

a=9

b= 30

c= 25

a+b+c = 9+30+25 = 64

Answer Link

amna04352 amna04352

09-05-2020

Answer:

64

Step-by-step explanation:

(3x + 5)² = ax² + bx + c

9x² + 30x + 25 = ax² + bx + c

a = 9

b = 30

c = 25

a + b + c

9 + 30 + 25

64

Answer Link

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