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nockturnal1993
09.10.2020 •
Mathematics
What must be true about two nonzero integers that combine to equal zero?
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Ответ:
Ответ:
2x^3 + 5x^2 - 18x + 9
Step-by-step explanation:
Step 1:
Distribute Parentheses:
2xx^2 + 2x * 4x + 2x ( - 3 ) + ( - 3x)^2 + ( - 3 ) * 4x + ( - 3) ( - 3 )
Step 2:
Apply Minus - Plus Rules
+ ( - a) = - a
( - a ) ( - b ) = ab
2x^2 x + 2 * 4xx - 2 * 3x - 3x^2 - 3 * 4x + 3 * 3
Step 3:
Simplify:
2x^2 x + 2 * 4xx - 2 * 3x - 3x^2 - 3 * 4x + 3 * 3
2x^3 + 5x^2 - 18x + 9
Hope that helps!