Question

HELP please can you answer this please

Answer 1

Answer:

1. 2x² - 8x - 7

2. x³+ x + 30

Step-by-step explanation:

Answer 2

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

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

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