book Maths Puzzle Numerical Ability

hi i need help for this equation and how to to arrive at the answer.

solve (find values) for A, B, C, D, F

(x^4 - 4x^2 - 7x - 28) = A(x^B + C)(x^D - F)

Read Solution (Total 0)

book Other Question

please tell me the proof for this question that Complex numbers and real Numbers are same numbers( I mean if we show complex numbres with C and real numbers with R we have : C~R ) y=2x+8