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Anika [276]
3 years ago
6

What is the factored form of x^2 - 4x - 5?

Mathematics
1 answer:
ser-zykov [4K]3 years ago
4 0

we are given

x^2-4x-5

we can use formula

x^2-(a+b)x+ab=(x-a)(x-b)

so, we have

a+b=4

ab=-5

now, we can solve for a and b

and we get

a=5, b=-1

now, we can plug it in formula

x^2-4x-5=(x-5)(x+1) ............Answer

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