Question

Which shows one way to determine the factors of x3 + 5x2 – 6x – 30 by grouping?
A:x(x2 – 5) + 6(x2 – 5)
B:x(x2 + 5) – 6(x2 + 5)
C:x2(x – 5) + 6(x – 5)
D:x2(x + 5) – 6(x + 5)

Answer 1

Answer:

D- x2(x + 5) – 6(x + 5)

Step-by-step explanation:

I usually explain very well, but I suck at math so ill just tell you how I solved it. I just searched, and got the answer, crossreferenced with at least three different sources, (not including the other Brainly answers from this question and the repeated) so its a reliable answer

Answer 2

Given; x³ + 5x²–6x–30

To Find; factors

Solution; x³ + 5x²–6x–30

This question can be easily solved by taking common first and then solving further to get the factors.

x²(x+5)-6(x+5)

Hence the correct option is d