Question

what are the zeros of x power 2-2x -143​

Answer 1

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• x² - 2x - 143 = 0

• x² - 13x + 11x - 143 = 0

• x (x - 13) + 11 (x - 13) = 0

• (x + 11) (x - 13) = 0

So , x + 11 = 0 ; x = -11

x - 13 = 0 ; x = 13

So , the zeros are -11 and 13

Answer 2

Answer:

x² - 2x - 143 = 0

x² - 13x + 11x - 143 = 0

x (x - 13) + 11 (x - 13) = 0

(x + 11) (x - 13) = 0

So , x + 11 = 0 ; x = -11

x - 13 = 0 ; x = 13