Question

factories. 3x²-4x-15​

Answer 1

Answer:

            ax^2 +bx +c

product=3*-15=-45

sum=-83                                                                  

3x²-4x-15​= 3x²-9x+5x-15​

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

(3x+5)(x-3)

hope you liked my answer

we take the sum as -9 and 5 because -9*5=-45, which is the product