if x is real,prove that the value of the expression (x - 1)(x + 3)/(x - 2)(x + 4) cannot be between 4/9 and 1
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Answer:
Step-by-step explanation:
(x-1)(x=3)/(x-2)(x=4)
= x2=3x-x-3/x2=4x-2x-8
=4x-3/4x-8
=-3/-8=3/8
It is proved since 3/8 is less than 4/9 and 1
hope this helped
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