20. if (x - 3) and (x-1/3)
are both factors of ax^2 + 5x + b, then show that a = b.
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Answer:
-3/2
Step-by-step explanation:
x-3=0
x=3
a3^2 + 5×3 + a = 0 (a=b)
9a + 15 + a = 0
10a = -15
a = -15/10
a = -3/2
b = -3/2
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