Find the equation whose roots are -8 and 5
A
\(x^2 + 13x + 40=0\)
B
\(x^2 - 13x - 40=0\)
C
\(x^2 - 3x +40=0\)
D
\(x^2 + 3x - 40=0\)
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
Equation with roots -8 and 5: (x + 8)(x - 5) = 0
\(x^2 - 5x + 8x - 40 = 0\)
\(x^2 + 3x - 40 = 0\)
Source: WAEC / JAMB / NECO Classroom Archive (Record #26456)