Question

04. Resolva:
a) 3x- 48 = 0
b) 2x + 6x = 0
c) 7x2 = 14x
d) 4x2 - 36 = 0​

Answer 1

04. Resolva:

a)

3x- 48 = 0

3x=48

X=48/3

b)

2x + 6x =0

8x=0

X=0/8

X=0

c)

7x2 = 14x

7*2*x=14x

14x=14x

14x-14x=0

0=0

d)

4x2 - 36 = 0​

4*2*x-36=0

8x=36

X=36/8

X=9/2