zoepatterson1p0lij1
20.03.2020 •
Mathematics
Subtract 3x2 + 8x from –9x2 + 3x – 8.
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Ответ:
-12x^2 -5x -8
Step-by-step explanation:
(-9x^2 +3x -8) -(3x^2 +8x) . . . . show the subtraction
= -9x^2 +3x -8 -3x^2 -8x . . . . . eliminate parentheses
= x^2(-9-3) +x(3-8) +(-8) . . . . . . collect terms
= -12x^2 -5x -8
Ответ:
The answer
is 21 1/2
Step-by-step explanation: