Question

Factor -2x^3 + 57x^2 - 196x

Answer 1

-x (x-4) (2x-49)

Explanation:

take out -x

you then have

2x^2-57x+196

then factor the remaining

multiply number next to x^2 which is a with 196 which is c

(-57 is b)

multiply 2 with 196 which = 392

then find out what 2 factors of 392 add up to -57

they are -8 and -49

2(x-8/2)(x-49/2)=0

2(x-49/2)(x-8/2)=0

(-x)(2x-49)(x-4)=0

Answer 2

Answer: -x(x-4)(2x-49)

Explanation:

Add and subtract the second term to the expression and factor by grouping.