X² + 11x + 28 + x² + 13x + 40
combine like terms
x² + x² = 2x²
11x + 13x = 24x
28 + 40 = 68
2x² + 24x + 68 is your answer
if you want it simplified:
2(x² + 12x + 34)
hope this helps
<span>9 - 3x - (-8y) + 9x -y
9 - 3x + 8y + 9x - y
9 - 3x + 9x + 8y - y
9 + 6x + 7y</span>
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Answer:
x=9,1
Step-by-step explanation:
Take the root of both sides and solve.
x
=
9
,
1
