Find the product of 3x^2+x-1 and 4x+5
a. 3x^2+5x+4
b. 12x^3+4x^2-4x
c. 12x^3+19x^2+x-5
d. 12x^3+19x^2+9x-5

12x^3 + 19x^2 +x - 5  

Step-by-step explanation:

(3x^2 + x - 1 ) (4x + 5)

12x^3 + 15x^2  + 4x^2 + 5x - 4x - 5           use the Distributive    

                                                                  Property* to  multiply

                                                                  each term by each other

                                                                  term.

12x^3 + 19x^2 +x - 5                                  simply

*Distribute the first number to 4x, and then by 5. Then distribute x to 4x and 5, and distribute -1 to 4x and 5. By distribute I mean multiply.

the bottom of the spinner is not flat.

step-by-step explanation:

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