Question

Which shows one way to determine the factors of x3 + 11x2 – 3x – 33 by grouping?

x2(x + 11) + 3(x – 11)
x2(x – 11) – 3(x – 11)
x2(x + 11) + 3(x + 11)
x2(x + 11) – 3(x + 11)

Answer 1

D: x2(x + 11) – 3(x + 11)

Explanation:

EDGE 2021

Answer 2

the last one is correc5

Explanation:

this is because x^2 times x equals x^3

then you do x^2 times 11 which is 11x^2

then -3 times x which is -3x

then -3 times 11 which is -33