Question

EQUAÇÕES DO 2 GRAU COM PARÊNTESES
ME AJUDEM​ É PRA HOJE

Answer 1

A)

2(ײ-1) = 3×

2x² - 2 = 3×

2ײ - 2 - 3× = 0

2ײ - 3× - 2 = 0

2ײ + × - 4× - 2 = 0

X× (2x + 1) - 2 (2× + 1) = 0

(2x + 1) × (× - 2) = 0

2x + 1 = 0

X - 2 = 0

X= - 1/2 , ×2 = 2

B)

4(ײ + ×) = 1 - ×

4ײ + 4× = 1 - ײ

4ײ + 4× - 1 + x² = 0

5ײ + 5× - × - 1 = 0

5x× (× + 1) - (× + 1) = 0

(× + 1) × (5× - 1) = 0

× + 1 = 0

5× - 1 = 0

X = - 1

X = 1/5

C)

X × (× - 3) - 2 × = - 6

ײ - 3 × - 2 × = - 6

ײ - 5 × = - 6

ײ - 5 × + 6 = 0

ײ - 2× - 3× (x - 2) = 0

X× (× - 2) - 3 ( × - 2) = 0

(× - 2) × (× - 3) = 0

× - 2 = 0

× - 3 = 0

× = 2

× = 3

×1 = 2 , ×2 = 3