Question

7 + x - x2, take away 9 + x + 3x2 + 7x3​

Answer 1

Step-by-step explanation:

$(7 + x - x2) - (9 + x + 3x2 + 7x3$

$7 + x - x2 - 9 - x - 3x2 - 7x3$

$(7 - 9) + (x - x) + ( - x2 - 3x2) + ( - 7x3)$

$( - 2) + 0 + ( - 4x2) + ( - 7x3)$

$- 2 - 4x2 - 7x3$

Answer 2

Step-by-step explanation:

so this is the step by step process

(7+x−x2)−(9+x+3x2+7x3

7 + x - x2 - 9 - x - 3x2 - 7x37+x−x2−9−x−3x2−7x3

(7 - 9) + (x - x) + ( - x2 - 3x2) + ( - 7x3)(7−9)+(x−x)+(−x2−3x2)+(−7x3)

( - 2) + 0 + ( - 4x2) + ( - 7x3)(−2)+0+(−4x2)+(−7x3)

- 2 - 4x2 - 7x3−2−4x2−7x3

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