Add 3x4 - 7x3 + 12x - 9
GUEST, GUEST
to
The sum is closed because
Roxanne wants...
Mathematics, 07.05.2021 18:20 jolayemihazeez97
Add 3x4 - 7x3 + 12x - 9
GUEST, GUEST
to
The sum is closed because
Roxanne wants to test the idea
that polynomials are closed
under addition. Her work and
explanation are shown.
are
and by definition
the sum is a polynomial.
Drag an expression and phrases
to the boxes to complete the
statement.
5x2 - (2x)3 + (4x)-1
(2x)3 + 2.1x2 - 11
-8x-2 f(3x)3 - 12x6 + 7
the exponents
the variables
the coefficients
integers
whole numbers
real numbers
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