Question

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Answer 1

2) X² - 2X - 6X + 12 = 0

X . ( X - 2) - 6 ( X - 2) = 0

( X - 2) . ( X - 6) = 0

X - 2 = 0

X - 6 = 0

X = 2

X = 6

X1 = 2; X2 = 6

LETRA B

3) a) 5X . ( X + 4) = 0

X . ( X + 4) = 0

X = 0

X + 4 = 0

X = 0

X = -4

X1 = 0; X2 = -4

b) X² + X - 3X - 3 = 0

X . (X + 1) - (X + 1) = 0

(X + 1) . (X - 3) = 0

X + 1 = 0

X - 3 = 0

X = -1

X = 3

X1 = -1; X2 = 3