2 Answers

Powdahound · Answer 1 · 2022-12-07T07:18:12+0000

$2 {x}^(2) - 9x - 2 +x - 5$

$2 {x}^(2) - 8x - 7$

2x² has no other like terms to add or substract with so it stays as is.

(-9x) + x = -8

(-2) - 5 = -7

or

(-2) - (-5) = 3

Watch out for the ones on top. I'm a bit confused about them but those ones are your possible options.

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${x}^(3) + 27 + x + 3$

${x}^(3) + x + 30$

x³ stays as is and so does x.

27 + 3 = 30

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