Simplify: (x^2 + 6x +9) (x^2 - 6x +9)
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Answered by
12
Step-by-step explanation:
(x² + 6x + 9) (x² - 6x + 9)
x² ( x² - 6x + 9 ) + 6x ( x² - 6x + 9) + 9 ( x² - 6x + 9)
x⁴ - 6x³ + 9x² + 6x³ - 36x² + 54x + 9x² - 54x + 81
x⁴ + 9x² + 9x² - 36x² -6x³ + 6x³ + 54x - 54x + 81
x⁴ - 18x² + 81
Answered by
10
Answer:
(x^4-18x^2+81) good afternoon
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