Question

Which of the following is one of the factors of 2x2 + 2x – 144?

Answer 1

these are the options:
2

x + 9

All of the above

x – 8

Answer 2

2x2 + 2x – 144
= 2[x^2 + x - 72]
= 2[x^2 + 9x - 8x - 72]
= 2[x(x + 9) -8(x + 9)]
= 2[(x - 8)(x + 9)]
= 2 (x - 8)(x + 9)
from this it is evident that all are factors of the given quadratic polynomial
so ans is "All of the above"