How much greater is $(11x^2 + 5x + 6) + (18x^2 + 17x + 17)$ ?

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Answer 1 · 2015-06-19T04:42:24

answer 1: $= color(red)(-7x^2 - 12x -11$
answer 2 $=color(red)(29x^2) + color(blue)(22x) + 23$

There are two interpretations for the above question:

Here we need to subtract:
$11x^2 + 5x + 6$
$color(red)(-)18x^2 color(red)(-) 17x color(red)(- )17$
$= color(red)(-7x^2 - 12x -11$

The second interpretation is to perform addition as the addition sign has been used in the question.

Grouping like terms:
$=color(red)((11x^2 + 18x^2)) + color(blue)((5x + 17x)) + (6 + 17)$
$=color(red)(29x^2) + color(blue)(22x) + 23$

How much greater is (11x^2 + 5x + 6) + (18x^2 + 17x + 17)(11x^2 + 5x + 6) + (18x^2 + 17x + 17)?