delena18
delena18
14-10-2017
Mathematics
contestada
expand and simplify (x-3)(x+7)
Respuesta :
Аноним
Аноним
14-10-2017
Let's multiply each term for the other one.
I mean: x*x; x+7; -3*x; -3*7
So
x
²
+7x-3x-21
We add up like terms.
Final answer:
x
²
+4x-21
Answer Link
ejelonubenedict
ejelonubenedict
14-10-2017
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
Answer Link
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