Question

2) Resolva as equações

Answer 1

a) 4x + x = 10

5x = 10

× = 2

b)

$x^{2} + 2x = 8$

$x ^{2} + 2x - 8$ = 0

x' = -4 x''= 2

c) 4x - 3 = 13

4x = 13+3

4× = 16

x = 4