Question

alguem me ajuda pelo amor de Deus

Answer 1

Resposta:

a)2x²-32=0

2x²=32

x²= 16

x=4

b)36x²=9

x=$\sqrt \frac{36}{9} = \frac{6}{3} =2$

c)x²-17=0

x²=17

x=$\sqrt{17}$

d)(x+1)²= 2x-3

x²+2.x.1+1²=2x-3

x²+2x+1=2x-3

x²=-4

x=2