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agasfer [191]
3 years ago
12

For which values of x is the function y = 5 / (x-4)(x+5) not defined? Select all that apply.

Mathematics
1 answer:
rewona [7]3 years ago
5 0
f(x)=\dfrac{5}{(x-4)(x+5)}\\\\(x-4)(x+5)\neq0\iff x-4\neq0\ and\ x+5=0\\\\x\neq4\ and\ x\neq-5\\\\Answer:\boxed{-5\ and\ 4}
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