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cestrela7 [59]
3 years ago
7

9. The expression x(x-7)+4(x-7) is equivalent to each of the following except which choice?

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

I the answer is number 3

x(x-7)+4(x-7)

x²-7x + 4x-28

=x²-3x-28

(x+4)(x-7)

x²-7x+4x-28

=x²-3x-28

(x-7)(x+4)

x²+4x-7x-28

=x²-3x-28

x2 – 3x – 28

the factored form is

=(x+4)(x-7)

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