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Math

Answered

which of the following polynomial equations has roots of - 3, 3 and 1? (show solutions)

a. x³ - x² - 9x + 9
b. x³ - x² - 9x - 9
c. x³ + x² - 9x + 9
d. x³ - x² + 9x + 9

thanks

Sagot :

AGBOIIIN AGBOIIIN

Answer:

LETTER A (x³-x²-9x+9)

Step-by-step explanation:

x = -3 or x+3 = 0

x = 3 or x-3 = 0

x = 1 or x-1 =0

Multiply the binomials:

(x+3)(x-3)(x-1) = 0
x²-3x+3x-9(x-1) = 0
x²-9(x-1) = 0
x³-x²-9x+9 =0

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