simplify bracket x 3 minus 3 x square minus x bracket close bracket open x square - 3 x + 1 bracket close
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Answer:
easy method (hope it helps)
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Answer:
(x³ - 3x² - x)(x² - 3x + 1) = x⁵ - 6x⁴ + 9x³- x
Step-by-step explanation:
(x³ - 3x² - x)(x² - 3x + 1)
open one bracket first
= x³(x² - 3x + 1) - 3x²(x² - 3x + 1) - x(x² - 3x + 1)
open each bracket
= x⁵ - 3x⁴ + x³ - 3x⁴ + 9x³ - 3x² - x³ + 3x² - x
Bring similar power terms together
= x⁵ - 3x⁴ - 3x⁴ + x³ + 9x³- x³ - 3x² + 3x² - x
= x⁵ - 6x⁴ + 9x³- x
(x³ - 3x² - x)(x² - 3x + 1) = x⁵ - 6x⁴ + 9x³- x
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