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Mathematics
Abel Mitchell
29 March, 05:03
Expand and simplify (x-3) (x+7)
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Arroyo
29 March, 06:06
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Let's multiply each term for the other one.
I mean: x*x; x+7; - 3*x; - 3*7
So x²+7x-3x-21
We add up like terms.
Final answer: x²+4x-21
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Lincoln Schneider
29 March, 07:00
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X (x+7) - 3 (x+7)
x² + 7x - 3x - 21
x² + 4x - 21
that's the answer
if you understand and it's correct. don't forget to make my answer the brainliest
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