What is the completely factored form of this polynomial? 7x4 + 14x3 − 168x2 A. 7x3(x + 4)(x − 6) B. 7x2(x + 4)(x − 6) C. 7x2(x − 4)(x + 6) D. 7x3(x − 4)(x + 6)

c

Step-by-step explanation:

7( x^4 + 2x^3 -24x^2 )

7x^6 ( x^2 + 2x -24 )

= 7x^2 (x - 4)(x + 6)

7x^2*(x-4)*(x+6)

Step-by-step explanation:

7x^4 + 14x^3 - 168x^2

common factor 7x^2

7x^2*( x^2+2x-24)

now we factor ( x^2+2x-24)

(x-4)*(x+6)

Solution

7x^2*(x-4(*(x+6)

22 dimes and 9 nickels

step-by-step explanation: